Allstates Refractory Contractors v. Julie Su

RECOMMENDED FOR PUBLICATION
Pursuant to Sixth Circuit I.O.P. 32.1(b)
File Name: 23a0194p.06

UNITED STATES COURT OF APPEALS
FOR THE SIXTH CIRCUIT

┐
ALLSTATES REFRACTORY CONTRACTORS, LLC,
│
Plaintiff-Appellant, │
│
v. │
> No. 22-3772
│
JULIE A. SU, in her official capacity as Acting │
Secretary of Labor, U.S. Department of Labor; │
DOUGLAS L. PARKER, in his official capacity as │
Assistant Secretary of Labor for Occupational Safety │
and Health; OCCUPATIONAL SAFETY & HEALTH │
ADMINISTRATION, U.S. DEPARTMENT OF LABOR; │
UNITED STATES ATTORNEY FOR THE NORTHERN │
DISTRICT OF OHIO, │
Defendants-Appellees. │
┘

Appeal from the United States District Court for the Northern District of Ohio at Toledo.
No. 3:21-cv-01864—Jack Zouhary, District Judge.

Argued: April 27, 2023

Decided and Filed: August 23, 2023

Before: COOK, GRIFFIN, and NALBANDIAN, Circuit Judges.
_________________

COUNSEL

ARGUED: Brett A. Shumate, JONES DAY, Washington, D.C., for Appellant. Courtney L.
Dixon, UNITED STATES DEPARTMENT OF JUSTICE, Washington, D.C., for Appellees.
ON BRIEF: Brett A. Shumate, John M. Gore, Anthony J. Dick, Brinton Lucas, JONES DAY,
Washington, D.C., Christopher M. McLaughlin, JONES DAY, Cleveland, Ohio, J. Benjamin
Aguiñaga, JONES DAY, Dallas, Texas, for Appellant. Courtney L. Dixon, Alisa B. Klein,
UNITED STATES DEPARTMENT OF JUSTICE, Washington, D.C., for Appellees. Michael
Pepson, AMERICANS FOR PROSPERITY FOUNDATION, Arlington, Virginia, Timothy S.
Bishop, Brett E. Legner, MAYER BROWN LLP, Chicago, Illinois, Jeffrey D. Jennings,
LIBERTY JUSTICE CENTER, Chicago, Illinois, Sheng Li, NEW CIVIL LIBERTIES
ALLIANCE, Washington, D.C., David C. Tryon, THE BUCKEYE INSTITUTE, Columbus,
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 2

Ohio, Oliver J. Dunford, PACIFIC LEGAL FOUNDATION, Palm Beach Gardens, Florida,
Luke A. Wake, PACIFIC LEGAL FOUNDATION, Sacramento, California, Nicolas A. Sansone,
Allison M. Zieve, PUBLIC CITIZEN LITIGATION GROUP, Washington, D.C., Pamela M.
Newport, BRANSTETTER, STRANCH & JENNINGS, PLLC, Cincinnati, Ohio, Brianne J.
Gorod, CONSTITUTIONAL ACCONTABILITY CENTER, Washington, D.C., Ben Seel,
DEMOCRACY FORWARD FOUNDATION, Washington, D.C., Alex Hemmer, OFFICE OF
THE ILLINOIS ATTORNEY GENERAL, Chicago, Illinois, Sean H. Donahue, DONAHUE &
GOLDBERG, LLP, Washington, D.C., Ian Fein, NATURAL RESOURCES DEFENSE
COUNCIL, San Francisco, California, Sanjay Narayan, SIERRA CLUB ENVIRONMENTAL
LAW PROGRAM, Oakland, California, Craig Becker, AFL-CIO, Washington, D.C., Randy
Rabinowitz, OSH LAW PROJECT, LLC, Washington, D.C., for Amici Curiae.

GRIFFIN, J., delivered the opinion of the court in which COOK, J., joined.
NALBANDIAN, J. (pp. 16–44), delivered a separate dissenting opinion.

_________________

OPINION
_________________

GRIFFIN, Circuit Judge.

More than fifty years ago, Congress passed, and President Nixon signed into law, the
Occupational Safety and Health (OSH) Act, 29 U.S.C. § 651 et seq. Throughout the next half
century, challenges to the constitutionality of the Act have been uniformly rejected. See Nat’l
Mar. Safety Ass’n v. Occupational Safety & Health Admin., 649 F.3d 743 (D.C. Cir. 2011), cert.
denied, 566 U.S. 936 (2012); Blocksom & Co. v. Marshall, 582 F.2d 1122 (7th Cir. 1978).

This case presents the same simple but poignant challenge: whether Congress’s
delegation to the Occupational Safety and Health Administration (OSHA) to set workplace-
safety standards is constitutional. Plaintiff Allstates Refractory Contractors, a general contractor
subject to OSHA’s oversight, challenges OSHA’s authority to set “reasonably necessary or
appropriate” workplace-safety standards, 29 U.S.C. §§ 652(8), 655(b), as a violation of the
nondelegation doctrine. The district court concluded that the delegation provided an “intelligible
principle” and thus rejected Allstates’s challenge. We agree and now join our sister circuits in
holding OSHA’s delegation to be constitutional.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 3

I.

Allstates is a full-service industrial general contractor that employs people throughout the
country. As an employer subject to the OSH Act, it must comply with OSHA’s workplace-
safety standards and expend resources to ensure that it does so. It has also been the subject of
enforcement actions in the past, including a $10,000 fine for a catwalk injury that occurred in
2019.

In this facial challenge to the OSH Act against the relevant governmental defendants,
Allstates contends that, because the only textual constraint on setting workplace-safety standards
is that they be “reasonably necessary or appropriate,” 29 U.S.C. § 652(8), OSHA does not have
the constitutional authority to set those standards under § 655(b) and employers do not have a
duty to comply with OSHA’s standards under § 654(a). In the district court, it moved for
summary judgment, requesting a permanent nationwide injunction. But, instead, the district
court granted the government’s cross motion for summary judgment. The court concluded that
the “reasonably necessary or appropriate” standard provided an “intelligible principle” to satisfy
the nondelegation doctrine because the Supreme Court has repeatedly upheld similar delegations;
so the court “decline[d]” Allstates’s “invitation” to “disregard these precedents.” Allstates
Refractory Contractors, LLC v. Walsh, 625 F. Supp. 3d 676, 681–84 (N.D. Ohio 2022).
Allstates timely appealed here.

II.

Allstates raises the same argument on appeal that it presented to the district court—that
the OSH Act violates the nondelegation doctrine. Eventually conceding that we are bound by the
“intelligible principle” test,1 Allstates argues that the OSH Act provides no such principle. On
de novo review, see United States v. Green, 654 F.3d 637, 649 (6th Cir. 2011), we agree with the
district court that the Act comfortably falls within the ambit of delegations previously upheld by
the Supreme Court.

1It first presents threshold arguments that the “intelligible principle” test violates the original meaning of
the Constitution, asserting that members of the Supreme Court have suggested reconsidering this approach. See,
e.g., Gundy v. United States, 139 S. Ct. 2116, 2138–42 (2019) (Gorsuch, J., dissenting). But we are bound by that
test as long as it is good law. See Worldwide Equip. of TN, Inc. v. United States, 876 F.3d 172, 181 (6th Cir. 2017).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 4

A.

Our Constitution vests “[a]ll legislative Powers . . . in a Congress of the United States.”
U.S. Const. art. I, § 1. The nondelegation doctrine, therefore, is “rooted in the principle of
separation of powers that underlies our tripartite system of Government,” the maintenance of
which “mandate[s] that Congress generally cannot delegate its legislative power to another
Branch.” Mistretta v. United States, 488 U.S. 361, 371–72 (1989). But while the Constitution
permits no delegation of legislative powers, it does “not prevent Congress from obtaining the
assistance of its coordinate Branches.” Id. at 372. For nearly a century, this inquiry has been
determined according to the “intelligible principle” test: “If Congress shall lay down by
legislative act an intelligible principle to which the person or body authorized to [act] is directed
to conform, such legislative action is not a forbidden delegation of legislative power.” J.W.
Hampton, Jr., & Co. v. United States, 276 U.S. 394, 409 (1928).

This test balances Congress’s need for flexibility with the Constitution’s prohibition on
legislative delegation. On one hand, it enforces the underlying principle of the nondelegation
doctrine “that Congress may not delegate the power to make laws and so may delegate no more
than the authority to make policies and rules that implement its statutes.” Loving v. United
States, 517 U.S. 748, 771 (1996); see also Marshall Field & Co. v. Clark, 143 U.S. 649, 693–94
(1892). But it has also long been grounded in the practical notion that, “in our increasingly
complex society, replete with ever changing and more technical problems, Congress simply
cannot do its job absent an ability to delegate power under broad general directives.” Mistretta,
488 U.S. at 372. “The Constitution has never been regarded as denying to the Congress the
necessary resources of flexibility and practicality, which will enable it to perform its function.”
Id. (citation omitted). For this reason, in determining what Congress must do to constitutionally
obtain help from another branch, “the extent and character of that assistance must be fixed
according to common sense and the inherent necessities of the governmental co-ordination.”
J.W. Hampton, Jr., 276 U.S. at 406.

Accordingly, the intelligible-principle test is satisfied and the statute is constitutional “if
Congress clearly delineates the general policy, the public agency which is to apply it, and the
boundaries of this delegated authority.” Mistretta, 488 U.S. at 372–73 (quoting Am. Power &
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 5

Light Co. v. S.E.C., 329 U.S. 90, 105 (1946)). This inquiry is one of statutory interpretation in
which we consider the act’s delegated “task,” the “instructions it provides,” and whether it
“sufficiently guides” the agency’s discretion. Consumers’ Rsch. v. F.C.C., 67 F.4th 773, 788
(6th Cir. 2023) (quoting Gundy v. United States, 139 S. Ct. 2116, 2123 (2019) (plurality
opinion)). In these inquiries, we must interpret the standard, not in “isolation,” but with regards
to “the purpose of the Act, its factual background and the statutory context in which [it]
appear[s].” Am. Power & Light, 329 U.S. at 104. Further, while the “‘degree of agency
discretion that is acceptable varies according to the scope of the power congressionally
conferred,’” we nonetheless “apply one universal intelligible-principle test regardless of the type
of statute at issue.” Consumers’ Rsch., 67 F.4th at 788 (quoting Whitman v. Am. Trucking
Ass’ns, 531 U.S. 457, 475 (2001)). However, this inquiry does not consider any limiting
construction the agency has adopted—“[w]hether the statute delegates legislative power is a
question for the courts, and an agency’s voluntary self-denial has no bearing upon the answer.”
Whitman, 531 U.S. at 473.

The Supreme Court, in examining non-delegation challenges, has almost uniformly
upheld “delegations under standards phrased in sweeping terms.” See Loving, 517 U.S. at 771;
see also 32 Charles A. Wright & Arthur R. Miller, Federal Practice and Procedure § 8122 (2d
ed. 1995). Historically, the Court upheld broad delegations. See, e.g., Marshall Field & Co.,
143 U.S. at 692–93 (finding proper a delegation to the President to impose retaliatory tariffs if he
“deemed” that American business was being treated unequally); United States v. Grimaud,
220 U.S. 506, 517, 521 (1911) (holding a delegation constitutional because Congress had
established the “penalties” and the agency could properly “fill up the details” through
administrative rules). This acceptance laid the foundation for the intelligible-principle test, such
that the Court has continued to permit broad delegations. For example, the Supreme Court
upheld delegations to the President to adjust tariff prices if he, “so far as he finds it practicable
. . . [took] into consideration” various economic factors, J.W. Hampton, Jr., 276 U.S. at 401–02,
to a commission to consider the “public interest” in authorizing railroad acquisitions, N. Y. Cent.
Secs. Corp. v. United States, 287 U.S. 12, 24–25 (1932), to a national coal commission to set
“just and equitable” prices that were in the “public interest,” Sunshine Anthracite Coal Co. v.
Adkins, 310 U.S. 381, 387, 397 (1940), to the Federal Communications Commission to regulate
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 6

radio stations when the “public convenience, interest, or necessity requires,” Nat’l Broad. Co. v.
United States, 319 U.S. 190, 214 (1943), and to the President to set “fair and equitable” prices
under the Emergency Price Control Act, Yakus v. United States, 321 U.S. 414, 427 (1944).

This trend has persisted, even in more recent years. For one, the Court in Mistretta
considered and found constitutional the delegation of authority to the Sentencing Commission.
488 U.S. at 374. While Congress granted the Commission ample discretion in making the
Sentencing Guidelines, that did not mean the act was unconstitutional: “our cases do not at all
suggest that delegations of this type may not carry with them the need to exercise judgment on
matters of policy.” Id. at 377–78. A later delegation to the Attorney General to set temporary
schedules of controlled substances “necessary to avoid an imminent hazard to the public safety”
was proper. Touby v. United States, 500 U.S. 160, 165–67 (1991). And the Court upheld a
delegation of authority to the EPA to establish national air standards that were “requisite to
protect public health.” Whitman, 531 U.S. at 473. “Requisite” meant “sufficient, but not more
than necessary,” and, because similar standards had been considered and upheld, the delegation
fit “comfortably within the scope of discretion permitted by our precedent.” Id. at 473, 475–76.2

On only two occasions—both in 1935 as part of its resistance to New Deal legislation—
has the Court found a violation of the nondelegation doctrine. In one, the delegation was to the
President to prohibit the transportation of petroleum. Panama Refin. Co. v. Ryan, 293 U.S. 388,
406 (1935). But that statute gave no limitation or guidance on how the President was to regulate
oil transportation: “So far as this section is concerned, it gives to the President an unlimited
authority to determine the policy and to lay down the prohibition, or not to lay it down, as he
may see fit.” Id. at 415. And in the other, the President had the ability to regulate nearly the
whole economy by merely promoting “fair competition.” A.L.A. Schechter Poultry Corp. v.
United States, 295 U.S. 495, 530 (1935). Such a “sweeping delegation” had no support in

2Indeed, one of the “precedents” considered in Whitman was a challenge to another provision of the OSH
Act in Indus. Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607 (1980): the “requisite” limitations “also
resemble the [OSH Act] provision requiring the agency to ‘set the standard which most adequately assures, to the
extent feasible, on the basis of the best available evidence, that no employee will suffer any impairment of health’—
which the Court upheld in [Industrial Union], and which even then-Justice Rehnquist, who alone in that case
thought the statute violated the nondelegation doctrine, would have upheld if, like the statute here, it did not permit
economic costs to be considered.” Whitman, 531 U.S. at 473–74 (internal citations omitted). See also 29 U.S.C.
§ 655(b)(5); Indus. Union, 448 U.S. at 646 (plurality opinion); id. at 671 (Rehnquist, J., concurring in the judgment).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 7

caselaw: the act’s delegation was “without precedent” as it authorized the President to create
rules of conduct, meaning his discretion to essentially enact laws was “virtually unfettered.” Id.
at 539, 541–42.

B.

Before applying the “intelligible principle” test to the OSH Act, we must consider the
context of the Act, as it sets the stage for our analysis. See Am. Power & Light, 329 U.S. at 104–
05. Congress passed the OSH Act in 1970, see Pub. L. 91-596, 84 Stat. 1590 (1970), finding that
“personal injuries and illnesses arising out of work situations” imposed a substantial burden on
the economy, 29 U.S.C. § 651(a). The overarching goal of the Act is therefore “to assure so far
as possible every working man and woman in the Nation safe and healthful working conditions
and to preserve our human resources.” Id. § 651(b). It then lays out several specific purposes
for the Act, including reducing workplace-safety hazards, increasing research into better safety
standards, encouraging states to improve their own safety standards, and providing appropriate
reporting procedures. Id.

To accomplish these purposes, the Act authorizes the Secretary of Labor to set
occupational safety and health standards, id. § 651(b)(3), a “standard which requires conditions,
or the adoption or use of one or more practices, means, methods, operations, or processes,
reasonably necessary or appropriate to provide safe or healthful employment and places of
employment,” id. § 652(8) (emphasis added). This definition is the main “statutory criteria”
providing “direction” to OSHA’s promulgation of permanent safety standards and national
consensus standards under § 655(a) and (b). See Indus. Union Dep’t, AFL-CIO v. Am. Petroleum
Inst., 448 U.S. 607, 640 n.45 (1980) (plurality opinion). OSHA “may” promulgate and modify
those standards via the prescribed process when it determines a rule is needed “in order to serve
the objectives of this chapter,” 29 U.S.C. § 655(b), (b)(1), and it may grant variances only under
specific circumstances, id. § 655(b)(6). Then there are specific procedures described in the Act,
with checks and balances, for adopting these standards—“a rigorous process that includes notice,
comment, and an opportunity for a public hearing.” See Nat’l Fed. of Indep. Bus. v. Dep’t of
Labor, 142 S. Ct. 661, 663 (2022) (NFIB). For example, interested persons have 30 days post-
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 8

promulgation to submit comment, OSHA must adopt the rule within 60 days, and then parties
may again file written objections and obtain a hearing. 29 U.S.C. § 655(b)(1)–(3).

Individuals subject to these standards must comply with them. Employers must provide a
workplace free from recognized hazards, and they must comply with the agency’s occupational
safety and health standards. Id. § 654. Employees are similarly obligated to comply with
standards applicable to them. Id. If a violation occurs, the agency has the authority to issue
citations. Id. § 658. The Act also sets out specific civil penalties or fines for violations. See id.
§ 666. But certain serious infringements, including those causing death to an employee, can lead
to imprisonment. Id. § 666(e)–(g).

We also do not perform our review of the Act’s provisions on a blank slate, for the
Supreme Court has previously considered, and construed, the “reasonably necessary or
appropriate” language. Prior to Industrial Union, OSHA interpreted that language as having “no
legal significance or at best merely requir[ing] that a standard not be totally irrational.” Indus.
Union, 448 U.S. at 639 (plurality opinion). But Industrial Union changed the calculus. There, a
plurality of the Court interpreted the OSH Act as requiring the agency, before issuing any
permanent safety standard, “to make a threshold finding that a place of employment is unsafe—
in the sense that significant risks are present and can be eliminated or lessened by a change in
practices.” Id. at 642. Because the agency did not make such findings and “did not even attempt
to carry its burden of proof” when promulgating a standard that lowered the permissible level of
benzene exposure, a plurality of the Court rejected the permanent safety standard at issue. Id. at
653–59. Justice Rehnquist concurred in the judgment but opined that the “to the extent feasible”
language of a separate provision, § 655(b)(5), violated the nondelegation doctrine. Id. at 682–88.
In his opinion, this “feasibility” requirement did nothing “other than render what had been a
clear, if somewhat unrealistic, standard largely, if not entirely, precatory.” Id. at 681–82.

Following Industrial Union, the Court cited approvingly OSHA’s attempts to make that
threshold determination that a particular safety issue carried a significant risk of harm. See Am.
Textile Mfrs. Inst., Inc. v. Donovan, 452 U.S. 490, 505–06 & n.25 (1981) (Cotton Dust); see also
id. at 513 n.32 (“[A]ll [§ 655(b)(5)] standards must be addressed to ‘significant risks’ of material
health impairment.”). While we have not yet done so, other circuits have held that Cotton Dust
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 9

“adopted the significant risk requirement.” See, e.g., Nat’l Mar. Safety Ass’n, 649 F.3d at 750
n.8. Finally, the Court has limited the “reasonably necessary or appropriate” standard to those
that are “economically or technologically feasible.” See Cotton Dust, 452 U.S. at 513 n.31
(“[A]ny standard that was not economically or technologically feasible would a fortiori not be
‘reasonably necessary or appropriate’ under the Act.”).

C.

Considering this statutory context and Supreme Court caselaw, we hold that the OSH
Act’s “reasonably necessary or appropriate” standard passes the “intelligible principle” test and
is therefore constitutional. To begin, the OSH Act sets forth a host of principles, purposes, and
goals that the agency must consider or fulfill. See 29 U.S.C. § 651(b). Then, the Act directs
OSHA to set standards to further these purposes—the agency “shall” establish standards and
modify them as necessary to serve the needs of the Act. Id. § 655(a), (b)(1). These goals guide
the agency’s decision-making in setting its standards, and they provide “overarching constraints”
on its discretion. Mistretta, 488 U.S. at 376. In particular, these guidelines limit OSHA’s
oversight to the workplace and restrict its standards to those that facilitate workplace safety, not,
for example, public health policy in general. See NFIB, 142 S. Ct. at 665 (“The Act empowers
the Secretary to set workplace safety standards, not broad public health measures.”).

Next, the Act significantly limits OSHA’s discretion in deciding whether it may issue a
particular occupational safety and health standard. OSHA cannot merely issue any standard it
likes; rather, a safety risk must be one that “requires” some action for a safe workplace.
29 U.S.C. § 652(8). In this context, “requires” substantially limits the agency’s discretion. See
Whitman, 531 U.S. at 475–76 (noting that a standard that is “‘requisite,’ that is, not lower or
higher than is necessary . . . fits comfortably within the scope of discretion permitted”). The risk
involved must be sufficient to warrant OSHA’s involvement. Thus, any occupational safety and
health standard that the agency issues is one that is genuinely needed to protect the safety of
workers.

Further, OSHA must take action and issue standards in response to safety issues. Look to
§ 655(b), the section at issue here. While the Act states that OSHA “may” promulgate standards
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 10

in the prescribed manner, this “may” is obligatory, not discretionary—in this context, it means
“must” or “shall.” See The American Heritage Dictionary of the English Language 808 (1969)
(defining “may” as pertinent here as “[o]bligation or function, with the force of must or shall, in
statutes, deeds, and other legal documents: ‘Congress may determine the time of choosing the
electors.’”); see also Keen v. Helson, 930 F.3d 799, 802 (6th Cir. 2019) (“When interpreting the
words of a statute, contemporaneous dictionaries are the best place to start.”). That is a
substantial and twofold limitation on OSHA’s discretion: OSHA must act when a particular
hazard “requires” its action, and it cannot issue any standard when the risk does not rise to that
level. This easily comports with the Supreme Court’s interpretation of the statute as requiring
OSHA to “make a threshold finding that a place of employment is unsafe—in the sense that
significant risks are present and can be eliminated or lessened by a change in practices.” Indus.
Union, 448 U.S. at 642 (plurality opinion); see also Cotton Dust, 452 U.S. at 505–06 & n.25.
The agency has no discretion in determining whether to set these permanent safety standards—it
must do so.

As for the standards themselves, OSHA may adopt only those conditions that are
“reasonably necessary or appropriate” to improve workplace safety. These standards do not need
to completely resolve the issue, for “‘safe’ is not the equivalent of ‘risk-free.’” Indus. Union,
448 U.S. at 642 (plurality opinion). Thus, a condition is “reasonably necessary or appropriate”
in the context of the OSH Act if it is something that OSHA can do to ameliorate or mitigate, but
not necessarily eliminate, an unsafe condition. See id. Contemporaneous dictionaries also
demonstrate the contours of the three terms: “Reasonable” is “[w]ithin the bounds of common
sense”; “necessary” is “[n]eeded for the continuing existence or function of something; essential;
indispensable”; and “appropriate” is “[s]uitable for a particular person, condition, occasion, or
place; proper; fitting.” The American Heritage Dictionary of the English Language 64, 877,
1086 (1969). So standards that are “necessary or appropriate to provide safe or healthful
employment” are those that are needed for or suited to the purpose of keeping workers safe in
their employment. That they be “reasonabl[e]” means that they need to be largely feasible or
within the bounds of common sense. Cf. Anderson v. Messinger, 146 F. 929, 943 (6th Cir. 1906)
(noting the difference between “reasonably necessary” and “absolutely necessary”). This
comports with other language in the Act requiring OSHA to consider the economic or
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technological feasibility of standards. See Cotton Dust, 452 U.S. at 513 n.31 (“[A]ny standard
that was not economically or technologically feasible would a fortiori not be ‘reasonably
necessary or appropriate’ under the Act.”). So while we agree with our sister circuits that Cotton
Dust adopted the limitations espoused in Industrial Union, see Nat’l Mar. Safety Ass’n, 649 F.3d
at 750 n.8, we note that there was good reason for it to have done so: the “feasibility” and
“significant risk” constructions are rooted in the language of the Act itself, not, for example, in
any agency-imposed limitation. Whitman, 531 U.S. at 472–73. In short, “reasonably necessary
or appropriate,” in context, means that the standards adopted should be needed to improve safety
but not to the exclusion of all else. This is not a broad, discretionary purpose statement but a real
standard to guide the agency’s actions.

This limit on Congress’s delegation is materially similar to those previously considered
by the Supreme Court. And the Court has upheld those delegations time and again. See, e.g.,
Sunshine Anthracite, 310 U.S. at 387 (“just and equitable”); Nat’l Broad. Co., 319 U.S. at 215–
16 (“public interest”); Yakus, 321 U.S. at 420–23 (“fair and equitable”); Touby, 500 U.S. at 163
(“necessary to avoid an imminent hazard to the public safety”); Whitman, 531 U.S. at 472–76
(“requisite to protect the public health”). All these standards provided ample discretion to an
agency or coordinate branch to deal with the issue as it saw fit—but each also set reasonable
guidelines as to how the entity must respond to the problem.

So too here. Congress has directed that OSHA must set standards to provide for public
health in the workplace when its action is required. OSHA, as the entity with greater experience
in health and safety, then has discretion to determine those standards. In this “complex” area
with “ever changing and more technical problems,” Congress may seek OSHA’s assistance.
Mistretta, 488 U.S. at 372. But while Congress gave OSHA significant discretion, that does not
render the delegation unconstitutional. The agency’s standards must still be reasonably
needed—that is, not more or less stringent than is needed to respond to, but not eliminate, a
safety risk in the workplace. Id. at 377; Whitman, 531 U.S. at 472–76. These standards do not
exist in a vacuum: they must further the policy objectives of the Act, thereby fitting within the
“hierarchy” developed by Congress. Mistretta, 488 U.S. at 377. And Congress, not OSHA, has
detailed the penalties that apply to violations—a crucial factor in the nondelegation analysis.
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See Grimaud, 220 U.S. at 517 (“[Congress] could give to those who were to act under such
general provisions ‘power to fill up the details’ by the establishment of administrative rules and
regulations, the violation of which could be punished by fine or imprisonment fixed by Congress,
or by penalties fixed by Congress, or measured by the injury done.”). Therefore, Congress has
indeed laid out the general policy (a safe working environment), the agency to apply it (OSHA),
and the boundaries of that authority (necessary standards to mitigate significant risks of harm).
Mistretta, 488 U.S. at 372–73. The Act describes the agency’s task (protecting workers from
unsafe conditions), provides instructions (requiring standards reasonably necessary and
appropriate to respond to those risks), and guides the agency’s discretion in doing so. See
Consumers’ Rsch. v. 67 F.4th at 788; Gundy, 139 S. Ct. at 2123 (plurality opinion). In short, the
agency’s discretion is not unbridled. Rather, because the delegation of power in the OSH Act
fits within the delegations previously upheld by the Court, the delegation is constitutional.

Finally, as previously noted, our holding finds support in the caselaw of our sister
circuits, two of which have concluded that the OSH Act satisfies the nondelegation doctrine. In
Blocksom & Co. v. Marshall, the Seventh Circuit rejected such a challenge, concluding that the
plaintiff’s arguments were “without persuasive merit.” 582 F.2d at 1125–26. It was not
necessary for the Act to prescribe the exact regulations OSHA could promulgate; instead, it was
sufficient that “Congress has chosen a policy and announced general standards which guide the
Secretary in establishing specific standards to assure the safest and healthiest possible working
environments, and which enable the courts and the public to test the Secretary’s faithful
performance of that command.” Id. at 1126. The D.C. Circuit similarly rejected this challenge
in National Maritime, as the delegation of power to OSHA was “no broader” than other
delegations upheld by the Supreme Court. 649 F.3d at 755–56. “In light of these precedents,
one cannot plausibly argue that [the OSH Act’s] standard is not an intelligible principle.” Id. at
756 (citation omitted).

D.

Allstates and the dissent resist this, contending that the delegation here is similar to the
two cases in which the Supreme Court held an act violated the nondelegation doctrine. But
Panama Refining and A.L.A. Schechter Poultry do not alter our conclusion. While these two
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 13

cases are binding on us, we must not read them in isolation, overlooking the many times that the
Court upheld delegations of authority. Instead, we must also follow the “broad leeway” that
Congress has under the Court’s entire nondelegation jurisprudence. See Consumers’ Rsch.,
67 F.4th at 788 (citing Whitman, 531 U.S. at 474–75). Even so, the OSH Act satisfies the
analysis in these cases, for Congress has required OSHA to make a “finding” and has “set up a
standard” governing the agency’s action. Panama Refin., 293 U.S. at 415; accord Shechter
Poultry, 295 U.S. at 534–35. OSHA must set standards when certain unsafe “conditions” exist
that “require[]” action, and those standards must be “reasonably necessary or appropriate”—that
is, needed to ameliorate those unsafe conditions but not to the exclusion of all else. 29 U.S.C.
§§ 652(8), 655(b)(1). This standard passes muster when considering the sum of the Supreme
Court’s jurisprudence.

Moreover, these two cases are readily distinguishable from the present case. For one, this
case does not involve a delegation with no standards, as in Panama Refining. Congress aptly
declared what purposes OSHA must consider and how the agency’s standards must be
reasonably needed to respond to Congress’s concerns. Thus, Congress has declared a policy,
established a standard, and laid down a rule. Cf. Mistretta, 488 U.S. at 372–73. And this is
distinguishable from the “virtually unfettered” delegation in Schechter Poultry. There, the
President could regulate essentially the entire economy and make whatever law he desired so
long as it promoted “fair competition”—a term that was not defined in the act and that
incorporated essentially all the act’s purposes. The breadth of the delegation needed a
corresponding level of guidance that was missing in the act. By contrast, the OSH Act is cabined
to workplace-safety standards—it does not allow OSHA to go beyond that. See NFIB, 142 S. Ct.
at 665. Further, the “reasonably necessary or appropriate” guidance is far more restrictive than
simply promoting “fair competition.” In short, OSHA does not have “virtually unfettered”
discretion, cf. Schechter Poultry, 295 U.S. at 542, for its discretion is limited to the “hierarchy”
established by Congress, Mistretta, 488 U.S. at 377. For that reason, it instead resembles other
constitutional delegations, not Panama Refining and Schechter Poultry. These two cases—the
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 14

only times the Supreme Court has determined a nondelegation violation has occurred—do not
control here.3

Further, while it is “true enough that the degree of agency discretion that is acceptable
varies according to the scope of the power congressionally conferred,” Whitman, 531 U.S. at
475, and Congress has allowed OSHA to regulate much of the economy, we cannot conclude
that the OSH Act confers too much discretion. For one, the Act substantially limits OSHA’s
discretion, meaning that the “degree of agency discretion” here is not so great. Id. The text and
overall purposes of the Act substantially limit OSHA’s playing field to the “workplace.” Cf.
NFIB, 142 S. Ct. at 665. And the threshold limitations discussed in Industrial Union and
adopted in Cotton Dust are rooted in the language of the Act. When accepting those limitations
(as we should) and reading them in context with the rest of the OSH Act, the Act clearly
delineates when and how the agency must act. See, e.g., 29 U.S.C. § 655. A health risk must
require a standard which should be both reasonably feasible and no more than necessary to
mitigate a safety risk. See id. at §§ 652(8), 655(a), (b)(1); cf. Whitman, 531 U.S. at 475–76. This
falls comfortably within the limitations accepted by the Supreme Court. See Yakus, 321 U.S. at
427 (collecting cases).

In addition, the Supreme Court has consistently upheld analogous delegations even when
the “scope of the power congressionally conferred” is similarly large. Whitman, 531 U.S. at 475.
Many prior cases addressed broad delegations implicating large and important areas of American
life. For example, railroad, coal, and radio were ubiquitous in American society in the 1930s and
1940s, yet the Court permitted broad regulatory delegations over those industries. See N. Y.

3Allstates also argues that this case implicates the “major questions” doctrine, but this is not a major-
questions case. That doctrine applies in “‘extraordinary cases’ . . . in which the ‘history and the breadth of the
authority that [the agency] has asserted,’ and the ‘economic and political significance’ of that assertion, provide a
‘reason to hesitate before concluding that Congress’ meant to confer such authority.” West Virginia v. Env’t Prot.
Agency, 142 S. Ct. 2587, 2608 (2022) (quoting FDA v. Brown & Williamson Tobacco Corp., 529 U.S. 120, 159–60
(2000) (second alteration in original)). In short, it applies when the question presented is “whether Congress in fact
meant to confer the power the agency has asserted.” Id. But Allstates does not contend that OSHA has taken a
specific action that exceeds the power that Congress delegated to OSHA. Cf. id. at 2610–16 (holding that Congress
did not give the EPA the authority to devise emissions caps because the statute never gave “clear congressional
authorization” to do so); NFIB, 142 S. Ct. at 665 (holding that OSHA’s vaccine mandate exceeded its delegated
authority). Rather, its argument is that the OSH Act itself is unconstitutional because Congress’s delegation is
improper—in other words, that Congress was not specific enough in its delegation, rather than was silent about
whether it delegated a particular power.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 15

Cent. Secs. Corp., 287 U.S. at 24–25; Nat’l Broad. Co., 319 U.S. at 214; Sunshine Anthracite,
310 U.S. at 387. And it is impossible to say that OSHA’s sphere of regulation is greater than, or
even equal to, the delegation of authority upheld in Yakus—to allow the President to set “fair and
equitable” prices for any product in the national economy. See 321 U.S. at 427. So while
Congress has conferred significant power to OSHA to oversee large sections of our economy, the
discretion conferred by the OSH Act nowhere near approaches the line where the scope of its
power is too great for the standard imposed. See Whitman, 531 U.S. at 475. The mere fact that
the Act applies to a large portion of the American economy does not transform this constitutional
limitation into an unconstitutional one.

III.

In sum, the OSH Act provides an overarching framework to guide OSHA’s discretion,
and the Act’s standards comfortably fall within those limits previously upheld by the Supreme
Court. So the Act passes constitutional muster. We therefore hold the standard prescribed by the
OSH Act to be a constitutional delegation of authority. “To require more would be to insist on a
degree of exactitude which not only lacks legal necessity but which does not comport with the
requirements of the administrative process.” Sunshine Anthracite, 310 U.S. at 398.

We affirm the judgment of the district court.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 16

_________________

DISSENT
_________________

NALBANDIAN, Circuit Judge, dissenting. For 88 years, federal courts have tiptoed
around the idea that an act of Congress could be invalidated as an unconstitutional delegation of
legislative power. The majority continues the trend. But, in my view, that streak should end
today. In the Occupational Safety and Health Act (“OSHA”), Congress granted the Secretary of
Labor nearly unfettered discretion in fashioning permanent occupational health and safety
standards. Because OSHA’s permanent standards provision (1) does not require any preliminary
factfinding or a particular situation to arise to trigger agency action and (2) does not contain a
standard that sufficiently guides the exercise of the broad discretion OSHA delegates to the
Secretary, the provision does not have an intelligible principle. So, under Supreme Court
precedent, it violates the nondelegation doctrine.

I.

“[I]t is always important in a case of this sort to begin with the constitutional text and the
original understanding, which are essential to proper interpretation of our enduring
Constitution.” Free Enter. Fund v. Pub. Co. Acct. Oversight Bd., 537 F.3d 667, 688 (D.C. Cir.
2008), (Kavanaugh, J., dissenting), aff’d in part, rev’d in part and remanded, 561 U.S. 477
(2010). Fourteen words start us off: “All legislative Powers herein granted shall be vested in a
Congress of the United States[.]” U.S. Const. art. I, § I.

Article I vests the “Senate and House of Representatives” (and them alone) with “[a]ll
legislative powers.” Id. That means that Congress, not some official in the Executive Branch,
creates laws. And only after, does the Executive come in and do its job—it may enforce the
laws, not create them. As James Madison and the public originally understood, any attempt at
“alienating the powers of the House . . . would be a violation of the Constitution.” Ilan Wurman,
Nondelegation at the Founding, 130 Yale L.J. 1490, 1506 (2021) (quoting 3 Annals of Congress
238–39 (1791) (James Madison)). Indeed, proceeding otherwise would defy the constitutional
separation of powers.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 17

Of all “principle[s] in our Constitution,” none is “more sacred than . . . that which
separates the legislative, executive and judicial powers.” Myers v. United States, 272 U.S. 52,
116 (1926) (quoting 1 Annals of Congress 581 (1791) (James Madison)); see Marshall Field &
Co. v. Clark, 143 U.S. 649, 692 (1892) (“That [C]ongress cannot delegate legislative power to
the president is a principle universally recognized as vital to the integrity and maintenance of the
system of government ordained by the [C]onstitution.”). And perhaps that’s because of the
democratic values it protects.

The Framers understood that lawmaking involved “hard choices.” Tiger Lily, LLC v.
U.S. Dep’t of Hous. & Urb. Dev., 5 F.4th 666, 674 (6th Cir. 2021) (Thapar, J., concurring). So
they placed the legislative power into the hands of the branch that was most accountable to the
people. And if any problems arose, “the people could respond, and respond swiftly” to remedy
any “misuse[]” of power. Id.

Along with accountability was “the bedrock principle that dividing power among
multiple entities and persons helps protect individual liberty.” PHH Corp. v. Consumer Fin.
Prot. Bureau, 881 F.3d 75, 187 (D.C. Cir. 2018) (Kavanaugh, J., dissenting), abrogated by Seila
L. LLC v. Consumer Fin. Prot. Bureau, 140 S. Ct. 2183 (2020); see The Federalist No. 51 (James
Madison) (C. Rossiter ed. 1961) (“[The] separate and distinct exercise of the different powers of
government . . . is admitted on all hands to be essential to the preservation of liberty[.]”). And it
does so by slowing down the ability to legislate. “Bicameralism and presentment make
lawmaking difficult by design.” Dep’t of Transp. v. Ass’n of Am. R.Rs., 575 U.S. 43, 61 (2015)
(Alito, J., concurring) (cleaned up). The Framers thought that these drawn-out processes not
only limited the government’s ability to restrict fundamental freedoms, but also promoted
deliberation and safeguarded unpopular minorities from the tyranny of the majority. See The
Federalist No. 73 (Alexander Hamilton), No. 51 (James Madison). In all, the separation of
powers shields the public’s interests in accountability and individual liberty. And Article I is one
way to ensure that separation.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 18

A.

Born out of Article I was what courts call the nondelegation doctrine. It stands for a
simple proposition—Congress alone has legislative powers, and it cannot delegate them away.
With that in mind, the Supreme Court has applied the doctrine to clarify how courts can
determine whether a power delegated to the executive is actually legislative (and thus a violation
of Article I).

Keeping in mind the fundamental, Founding principle that “the legislature makes, the
executive executes, and the judiciary construes the law,” courts have adjudicated Congress’s
ability to delegate power. Wayman v. Southard, 23 U.S. (10 Wheat.) 1, 46, 50 (1825) (upholding
a delegation of power to federal courts to regulate their own procedures and holding that state
legislatures could not interfere with that delegation). That said, within a few decades after
ratification, Congress did “commit something to the discretion of the other [Branches].” Id. at 46
(noting that court determinations of “the precise boundary of this power is a subject of delicate
and difficult inquiry”). But Chief Justice Marshall and the Court understood that Congress could
not delegate “powers which are strictly and exclusively legislative.” Id. at 42. Still, they
allowed Congress to delegate other “powers which the legislature may rightfully exercise itself.”
Id. at 43. As Chief Justice Marshall went on to say, the “line” separating “important subjects,
which must be entirely regulated by the legislature itself,” and “those of less interest,” which
allow others to “fill up the details” in a “general provision,” was not “exactly drawn.” Id. So the
Court began to try to clarify where that line fell.

At first, the Supreme Court focused on the “extent” or “character of the power” that
Congress conferred. Id. Delegating “the making of law” itself was off limits. Marshall Field &
Co., 143 U.S. at 693; see Buttfield v. Stranahan, 192 U.S. 470, 496 (1904) (denying that
Congress may “invest administrative officials with the power of legislation”). But the Supreme
Court still permitted Congress to vest others with the “authority or discretion as to [a law’s]
execution.” Marshall Field & Co., 143 U.S. at 693–94 (citation omitted). Indeed, for over a
century after the Founding, courts allowed “Congress . . . to use officers of the [E]xecutive
branch within defined limits, to secure the exact effect intended by its acts of legislation.” J.W.
Hampton, Jr., & Co. v. United States, 276 U.S. 394, 406 (1928) (emphases added) (collecting
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 19

cases). And importantly, those “defined limits” were what courts called “intelligible
principle[s].” Id. at 406, 409.

Indeed, Congress fashioned laws that included various constraints to guide the Executive
on what it could and couldn’t do. For instance, some laws required Executive officials to find
facts before taking action, and others limited Executive responses to specific situations. See id.
at 405 (noting that a statute “provided [the President] with a body of investigators who were to
assist him in obtaining needed data and ascertaining the facts justifying readjustments” of foreign
trade); Marshall Field & Co., 143 U.S. at 693–94 (conditioning the President’s “duty to issue a
proclamation” on a fact-finding inquiry into whether exports from a country were “reciprocally
unequal and unreasonable”). Other laws required the officials to consider specified criteria
before doing something. See N.Y. Cent. Sec. Corp. v. United States, 287 U.S. 12, 24–25 (1932)
(requiring the Interstate Commerce Commission to consider criteria before permitting acquisition
of a railroad in the “public interest,” including the “adequacy of transportation service,”
“economy and efficiency,” and the “best use of transportation facilities”). And others concerned
grants of power so discrete in themselves that no more direction from Congress was necessary.
See Union Bridge Co. v. United States, 204 U.S. 364, 366, 387 (1907) (granting the Secretary of
War the authority to provide bridge owners with notice and a reasonable amount of time to make
structural changes to their bridges); see also Tagg Bros. & Moorhead v. United States, 280 U.S.
420, 435 n.3 (1930) (requiring the Secretary of Agriculture to go through a “full hearing” before
establishing “just and reasonable rates and charges” for “the furnishing of stockyard services”
(citation omitted)).

Long story short, “in every case in which the question [of delegation was] raised, the
Court . . . recognized that there are limits of delegation which there is no constitutional authority
to transcend.” Panama Refin. Co. v. Ryan, 293 U.S. 388, 430 (1935). And what confined those
delegations in each case was some sort of limitation that someone outside the Legislative Branch
had to abide by. Id. Those constraints became known as a law’s “intelligible principle.”
J.W. Hampton, Jr., & Co., 276 U.S. at 409.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 20

B.

But it wasn’t until 1935 that the Court found that Congress had pushed its limits. In
Panama Refining v. Ryan, the Court held for the first time that a congressional grant of power
was an unconstitutional delegation. 293 U.S. at 430, 433. Congress had delegated regulatory
authority over the transportation of petroleum and petroleum products to the President. Id. at
414–15. In evaluating whether this delegation was constitutional, the Court “look[ed] to the
statute” to test whether Congress violated Article I when delegating powers to the Executive
Branch. Id. at 415. Importantly, the Court provided some considerations to determine whether a
congressional act “shall be prohibited by law [a]s obviously one of legislative policy”:

Accordingly, we look to the statute to see whether the Congress has declared a
policy with respect to that subject; whether the Congress has set up a standard for
the President’s action; whether the Congress has required any finding by the
President in the exercise of the authority to enact the prohibition.

Id.

Keeping these considerations in mind, the Panama Refining Court found that the law had
no “intelligible principle” by which the President was “directed to conform.” Id. at 430 (citation
omitted). Although Congress provided a “general outline of policy” on the “transportation of
petroleum or petroleum products,” id. at 417, Congress did not “lay[] down [a] policy of
limitation” or “policy for the achievement” of the “conservation of natural resources,” id. at 418.
Instead, in “general terms,” it seemed as if the “broad outline [wa]s simply an introduction of the
act, leaving the legislative policy as to particular subjects to be declared and defined . . . by . . .
subsequent sections.” Id. But the law didn’t further define the general policy. Id. at 430.

Indeed, the law “laid down no rule” on what actions the President had to make if certain
situations arose, id., and “nothing as to the circumstances or conditions” that would prompt him
to prohibit transportation, id. at 417. No “determination as to any facts or circumstances” had to
be made, and no situation had to come about before the President could exercise discretion under
the law. Id. at 418.

Instead, Congress vested the President with the discretion to make petroleum-
transportation standards and enforce accordingly. Id. at 420–21. And Congress didn’t provide
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 21

him with a standard to guide his discretion. Id. Said otherwise, Congress did not require the
President to consider a “primary standard”—some set of criteria or considerations—that would
limit his discretion in “‘fill[ing] up the details’ under . . . general provisions.” Id. at 426 (quoting
Wayman, 23 U.S. (10 Wheat.) at 43). Contrary to other acts of legislation, the law did not
“legislate[] on the subject as far as was reasonably practicable.” Id. at 427 (quoting Buttfield,
192 U.S. at 496). Rather, Congress’s wide grant of discretion allowed the President to choose
“[a]mong the numerous and diverse objectives broadly stated.” Id. at 418. And so, with no
factual prerequisite or standard guiding his authority, he could act “as he pleased” in regulating
petroleum transportation. Id. As a result, the Court held that Congress unconstitutionally
delegated its legislative power.

Soon after came A.L.A. Schechter Poultry Corp. v. United States. 295 U.S. 495 (1935).
In Schechter Poultry, Congress delegated regulatory authority to the President to set “codes of
fair competition” in certain trades and industries—in this case, the poultry industry. Id. at 521–
22. Before getting into the analysis, the Court pointed out that the Constitution gives “Congress
the necessary resources of flexibility and practicality . . . in laying down policies and establishing
standards.” Id. at 530. But the Court explained that Congress could only delegate to “selected
instrumentalities” if Congress also “prescribed limits and the determination of facts to which [a]
policy as declared by the Legislature [wa]s to apply.” Id.

Relying on Panama Refining, the Supreme Court “look[ed] to the statute to see whether
Congress . . . overstepped these limitations”—that is, the Court determined whether Congress
provided an intelligible principle by “establish[ing] the standards of legal obligation” or whether
it didn’t “by . . . fail[ing] to enact such standards” and thereby “attempt[ing] to transfer that
[legislative] function to others.” Id. In the end, the Court held that Congress didn’t provide an
intelligible principle. See id. at 534, 537–38 (“Congress [could not] delegate legislative power to
the President to exercise an unfettered discretion to make whatever laws he thinks may be
needed or advisable for” a “broad range of objectives,” including “rehabilitation and expansion
of trade or industry.”).

In finding an Article I violation, the Court turned to two considerations also identified in
Panama Refining. The Court held that the law didn’t (1) list “rules of conduct to be applied to
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 22

particular states of fact determined by appropriate administrative procedure.” Id. at 541. Nor did
the law (2) contain “standards [that could guide Executive discretion], aside from the statement
of the [law’s] general aims of rehabilitation, correction, and expansion.” Id.

Besides some general goals, no considerations limited what the President could do. And
the Schechter Poultry Court spelled out a few reasons why the law didn’t have an adequate
standard. First, the Court found that the law’s general “statement of the authorized objectives,”
id. at 534, was a “broad declaration” that still left the President’s discretion “virtually
unfettered,” id. at 541–42. Next, it found that the two procedural “condition[s]” the President
had to meet before promulgating did not limit “the permissible scope” of his regulatory authority
because they still allowed him to act “as he may see fit.” Id. at 538. And last, the Court
recognized that the broad grant of power to the President required Congress to be more specific
in how it guided the President’s discretion. Id. at 541.

The Court noted the difference between laws concerning smaller grants of discretion (like
those dealing with “rules of miners as to mining claims” and “the standard height of drawbars”),
and the law in Schechter Poultry (which granted “a sweeping delegation of legislative power”
over codes affecting the “rehabilitation and expansion of . . . trades or industries”). Id. at 537;
see id. at 539 (noting that the delegated “authority relate[d] to a host of different trades and
industries, thus extending the President’s discretion to all the varieties of laws which he may
deem to be beneficial in dealing with the vast array of commercial and industrial activities
throughout the country”). The Court concluded that a delegation of that magnitude, with no
intelligible principle to limit Executive discretion, was “unknown to our law, and . . . utterly
inconsistent with the constitutional prerogatives and duties of Congress.” Id. at 537. Taken
together, the law in “no way limit[ed]” the “breadth of the President’s discretion.” Id. at 538–39.
So as in Panama Refining, the law in Schechter Poultry had no “intelligible principle” limiting
the President’s discretion. J.W. Hampton, Jr., & Co., 276 U.S. at 409; Schechter Poultry, 295
U.S. at 551.

After Panama Refining and Schechter Poultry, at least one thing became clear:
Congress’s “general outline of policy,” Panama Refin., 293 U.S. at 417, or “statement of . . .
general aims,” Schechter Poultry, 295 U.S. at 541, was not enough to form an intelligible
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 23

principle. Knowing that, the Supreme Court began to focus its nondelegation analysis on two
considerations: (1) “whether the Congress has required any finding by the President in the
exercise of the authority,” and (2) “whether the Congress has set up a standard for the President’s
action.” Panama Refin., 293 U.S. at 415; see Schechter Poultry, 295 U.S. at 530. As I’ll
explain, the intelligible principles identified throughout later Supreme Court precedent fall into
one of these two buckets.

C.

With Panama Refining and Schechter Poultry remaining good law, the Court has further
refined the “intelligible principle” framework.1 Since 1935, most (if not all) nondelegation cases
have involved legislation that has granted the Executive some form of policy-making power.
And each time that’s happened, the Supreme Court has upheld the legislation by finding an
intelligible principle in two ways—two ways that track the two considerations present in
Panama Refining and Schechter Poultry.

First, a “finding by the President in the exercise of the authority to enact the prohibition.”
Panama Refin., 293 U.S. at 415. The Supreme Court has upheld laws that require certain

1The Supreme Court has not held that any act of Congress unconstitutionally delegates legislative power
since those two cases. Rather, the Court has upheld each law before it while developing what we call the
intelligible-principle test. See generally Amy Coney Barrett, Suspension and Delegation, 99 Cornell L. Rev. 251,
318 & n.285 (2014) (describing the test as “notoriously lax”). And at least from 1940 to 2015, it appears that only
one nondelegation challenge has been successful in lower federal courts without being reversed on appeal. Jason
Iuliano & Keith E. Whittington, The Nondelegation Doctrine: Alive and Well, 93 Notre Dame L. Rev. 619, 636
(2018).
Some jurists have pointed out that the test actually allows Congress to delegate “legislative power”—but only if the
delegation is “adequately limited by the terms of the authorizing statute.” Whitman v. Am. Trucking Ass’n, 531 U.S.
457, 488 (2001) (Stevens, J., concurring in part and concurring in the judgment); see Dep’t of Transp., 575 U.S. at
86 (Thomas, J., concurring in the judgment) (“Our reluctance to second-guess Congress on the degree of policy
judgment is understandable; our mistake lies in assuming that any degree of policy judgment is permissible when it
comes to establishing generally applicable rules governing private conduct.”). And others have noted that “the
Constitution does not speak of ‘intelligible principles’” in the first place, which prompts the question of when the
Supreme Court will revisit the nondelegation doctrine again. Whitman, 531 U.S. at 488 (Thomas, J., concurring)
(“On a future day, however, I would be willing to address the question whether our delegation jurisprudence has
strayed too far from our Founders’ understanding of separation of powers.”); see, e.g., Gundy v. United States, 139
S. Ct. 2116, 2139 (2019) (Gorsuch, J., dissenting) (“Th[e] mutated version of the ‘intelligible principle’ remark has
no basis in the original meaning of the Constitution, in history, or even in the decision from which it was plucked.”);
Paul v. United States, 140 S. Ct. 342, 342 (2019) (Mem.) (Kavanaugh, J., statement respecting the denial of
certiorari) (“Justice Gorsuch’s thoughtful Gundy opinion raised important points that may warrant further
consideration in future cases.”); Michigan v. EPA, 576 U.S. 743, 763 (2015) (Thomas, J., concurring) (“[W]e seem
to be straying further and further from the Constitution without so much as pausing to ask why.”).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 24

situations or fact-finding to occur before the Executive can act under a statute. See Opp Cotton
Mills v. Adm’r of Wage & Hour Div. of Dep’t of Lab., 312 U.S. 126, 143–45 (1941) (upholding a
law that allowed the Executive to fix the minimum wages contingent on “basic facts to be
ascertained administratively” while considering a list of “prerequisites” and “further
requirements”); Radio Corp. of Am. v. United States, 341 U.S. 412, 416 & n.5 (1951) (involving
a law that required a commission “to promulgate standards for transmission of color television
that result in rejecting all but one of the several proposed systems” “as public convenience,
interest, or necessity required]” but only “given a justifiable fact situation”).

Second, “a standard.” Panama Refin., 293 U.S. at 416. When a law does not condition
the Executive’s grant of regulatory authority on a set of facts, the Supreme Court has looked for
a standard. Indeed, a law would be unconstitutional if “an absence of standards” makes it
“impossible in a proper proceeding to ascertain whether the will of Congress has been obeyed.”
Yakus v. United States, 321 U.S. 414, 426 (1944). With that in mind, any standard must be
“sufficiently definite and precise” so as “to enable Congress, the courts and the public to
ascertain whether the [Executive official] . . . has conformed to those standards.” Id.; Opp
Cotton Mills, 312 U.S. at 144; see Gundy, 139 S. Ct. at 2129 (plurality) (“The Court has stated
that a delegation is permissible if Congress has made clear to the delegee the general policy he
must pursue and the boundaries of his authority.” (cleaned up)). And in making an assessment,
“standards need not be tested in isolation.” Am. Power & Light Co. v. SEC, 329 U.S. 90, 104
(1946). Courts can “derive much meaningful content from the purpose of the [legislation], [the]
factual background and the statutory context in which the[] [standards] appear.” Id.

After Schechter Poultry, broad purpose statements that granted wide discretion and
general phrases in a law were not enough to satisfy the Court’s intelligible-principle test. But the
Court has favored standards that specify what the Executive “must conform to,” such as a list of
“standards” and “criteria” that guide regulation. Sunshine Anthracite Coal Co. v. Adkins, 310
U.S. 381, 397–98 (1940) (upholding a law that allowed the Executive to “fix maximum prices”
on bituminous coal “when . . . the public interest . . . deem[ed] it necessary in order to protect the
consumer against unreasonably high prices” while being bound by “standards” and “criteria”);
see Am. Power & Light Co., 329 U.S. at 105 (upholding a law that allowed the Executive to help
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 25

preserve corporate structures, but only if it complied with “a veritable code of rules” within the
law’s “express recital of evils,” “general policy declarations,” “standards for new security
issues,” and “conditions for acquisitions of properties and securities,” and its specification of the
“nature of the inquiries contemplated”); Nat’l Broad. Co. v. United States, 319 U.S. 190, 204,
225–26 (1943) (upholding a law allowing for the rejection of a broadcasting network program
for the “public interest, convenience, and necessity” because “[t]he purpose of the Act, the
requirements it imposes, and the context of the provision in question” provided an intelligible
principle (citation omitted) (emphasis added)).

From mandatory “factors” that the Executive must consider to “prohibited” factors that
the Executive cannot consider, the Court has upheld delegations that give specific guidance—
guidance that the Executive cannot disregard. Mistretta v. United States, 488 U.S. 361, 375–76
(1989) (requiring the Sentencing Commission to form guidelines while considering, among
many things, “seven factors” of the offenses, the “specific tool” of the “guidelines system,”
“three goals,” “four ‘purposes,’” and “prohibited” factors (citation omitted)).

Some of those required considerations might take the form of “the latest scientific
knowledge.” Whitman, 531 U.S. at 473 (requiring the Executive to set air quality standards
“[f]or a discrete set of pollutants . . . based on published air quality criteria that reflect the latest
scientific knowledge” and “at a level that is . . . sufficient, but not more than necessary” to
“protect public health from the adverse effects of the pollutant in the ambient air” (citation
omitted)). Whereas others might be specific considerations or restrictions relating to the power
vested. See Touby v. United States, 500 U.S. 160, 166–67 (1991) (allowing the Attorney General
to schedule a drug if it is “necessary to avoid an imminent hazard to the public safety” while also
“requir[ing] [the Attorney General] to consider . . . multiple specific restrictions,” including
“three factors” related to drug abuse, the risk to public health, and “criteria for adding a
substance to each of the five schedules”); Yakus, 321 U.S. at 419, 427 (noting that the law
provided “directions” for the Executive, to fix prices as a “temporary wartime measure,” but only
when “consideration [is] given to prices prevailing in a stated base period” and the prices be “fair
and equitable”).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 26

Importantly, one other trend permeated the development of Article I’s nondelegation
requirement: Laws that vest more power require more constraints. To be clear, regardless of the
breadth of delegation, standards must still be “sufficiently definite and precise,” Yakus, 321 U.S.
at 426, and Congress must still express “the boundaries of . . . delegated authority” even when
“delineat[ing] [a] general policy,” Am. Power & Light Co., 329 U.S. at 105, 113 (blessing a
statutory provision vesting a narrow scope of power to the SEC to “ensure that the corporate
structure or continued existence of any company in a particular holding-company system”
conformed to enumerated standards).

But the body of Supreme Court cases we have requires more detail when Congress
confers more power. “It is true enough that the degree of agency discretion that is acceptable
varies according to the scope of the power congressionally conferred.” Whitman, 531 U.S. at
475 (comparing the minimal “direction” needed to delegate the task of defining “country
elevators” to the “substantial guidance [needed to] set[] air standards that affect the entire
national economy”); see Touby, 500 U.S. at 166 (explaining that “greater congressional
specificity” may be needed in certain contexts).

Indeed, the Court has identified some statutes that were so narrow that they required less
detail. See Gundy, 139 S. Ct. at 2125, 2128, 2130 (explaining that the delegation was narrow
because it (1) granted “only temporary authority,” which was “distinctly small-bore” when
compared to other delegations; (2) allowed discretion in the form of “time-limited latitude” of an
“implementation delay,” “[b]ut no more than that” “to address . . . various implementation
issues”; and (3) “enabled the Attorney General only to address (as appropriate) the ‘practical
problems’ involving pre-Act offenders before requiring them to register . . . [which] was a
stopgap, and nothing more” (citation omitted) (emphases added)); Nat’l Broad. Co., 319 U.S. at
216 (interpreting “‘public interest, convenience, or necessity’ . . . by its context, by the nature of
radio transmission and reception, by the scope, character, and quality of services” because the
criterion was only “as concrete as the . . . field of delegated authority permi[ted]” (citation
omitted)); see also Yakus, 321 U.S. at 419, 426 (noting that a “temporary wartime” law’s
“authority to fix prices . . . to prevent inflation [wa]s no broader than the authority” vested by
other laws).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 27

In sum, the Supreme Court, over two centuries worth of caselaw, has developed a test to
determine whether a congressional delegation of power is constitutional under Article I. That
test is aimed at an “intelligible principle.” J.W. Hampton, Jr., & Co., 276 U.S. at 409. And that
in turn requires a court to analyze a statute for two things: (1) a fact-finding or situation that
provokes Executive action or (2) standards that sufficiently guide Executive discretion—keeping
in mind that the amount of detail governing Executive discretion must correspond to the breadth
of delegated power. See Schechter Poultry, 295 U.S. at 541–42; Panama Refin., 293 U.S. at 430;
Whitman, 531 U.S. at 475. If neither of these exist, under Supreme Court precedent, there is no
intelligible principle. Rather, that law would be an unconstitutional grant of legislative power
under Article I.

II.

Never have we or the Supreme Court decided whether the permanent standards provision
under OSHA constitutes an unconstitutional delegation of power.2 OSHA vests the Secretary of
Labor with the power to “set mandatory occupational safety and health standards applicable to
businesses affecting interstate commerce.” 29 U.S.C. § 651(b)(3). And under OSHA’s
permanent standards provision, the Secretary “may by rule promulgate, modify, or revoke any
occupational safety or health standard.” Id. § 655(b). If that delegation sounds like a lot of
power—it is. It gives the Secretary broad discretion to create mandatory safe and healthy
working conditions for “every working man and woman in the Nation.” Id. § 651(b). And the
only thing binding his discretion is that he must believe that a standard is “reasonably necessary
or appropriate to provide safe or healthful employment and places of employment.” Id.
§§ 651(b)(3), 652(8) (emphasis added).

Bound by the Supreme Court’s development of the “intelligible principle” test, I believe
the delegation of power under these provisions violates Article I. That’s because the provisions

2As I later explain, the Supreme Court has only dealt with OSHA’s “toxic materials or harmful physical
agents” provision under 29 U.S.C. § 655(b)(5). See Indus. Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S.
607, 611 (1980). Importantly, this was a different provision. And it didn’t take long for the Supreme Court to note
that its holding on § 655(b)(5) does not affect how courts should interpret § 652(8)—the definition provision on
which OSHA’s permanent standards provision solely depends. See Am. Textile Mfrs. Inst., Inc. v. Donovan, 452
U.S. 490, 513 & n.32 (1981) (explicitly leaving open “all the applications that [§ 652(8)] might have, either alone or
together with [§ 655(b)(5)]”).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 28

provide (1) no fact-finding or situation that prompts Executive action and (2) no standard that
sufficiently guides discretion on what health and safety standards are appropriate. And that’s
even more so the case because the broad scope of delegated power here—creating permanent
standards “for every working man and woman in the Nation”—demands that Congress be
correspondingly detailed in how it limits agency discretion. Id. § 651(b). Under a faithful
application of Supreme Court precedent, Congress failed to “lay down by legislative act an
intelligible principle to which the person or body authorized to [act] . . . is directed to conform.”
J.W. Hampton, Jr., & Co., 276 U.S. at 409.

Our “nondelegation inquiry” into OSHA begins and ends with statutory interpretation.
Gundy, 139 S. Ct. at 2123 (“[I]ndeed, once a court interprets the statute, it may find that the
constitutional question all but answers itself.”). To determine “whether Congress has supplied
an intelligible principle to guide the . . . use of discretion,” we “constru[e] the challenged statute
to figure out what task it delegates and what instructions it provides.” Id. And as described
above, we can find an intelligible principle from two considerations: (1) a fact-finding or
situational requirement that provokes Executive action or (2) standards that sufficiently guide
Executive action. At the same time, we assess “whether the law sufficiently guides executive
discretion to accord with Article I,” id., which means that we look at whether “the degree of
agency discretion . . . accord[s] to the scope of the power congressionally conferred.” Whitman,
531 U.S. at 475.

With that framework in mind, what I look for is an intelligible principle from the
considerations set out in Panama Refining and Schechter Poultry. And where I look is OSHA’s
provisions—few as they may be.

A.

To start, OSHA’s permanent standards provision requires no (1) fact-finding or situation
to occur before the Secretary acts. See Schechter Poultry, 295 U.S. at 541–42; Panama Refin.,
293 U.S. at 417–18, 430. As an initial matter, OSHA gives the Secretary the option of
consulting an advisory committee before promulgating a standard, 29 U.S.C. § 655(b)(1), but it
does not require him or the committee to “obtain[] needed data” or to determine “the facts
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 29

justifying” any changes to health and safety standards. J.W. Hampton, Jr., & Co., 276 U.S. at
405 (emphasis added). And even if the committee gives the Secretary “recommendations and
findings in relation to the making of codes,” they are not binding—they “have no sanction
beyond the will of the [Secretary], who may accept, modify, or reject them as he pleases.”
Schechter Poultry, 295 U.S. at 539. So the Secretary’s power to regulate permanent standards is
not contingent on a fact-finding inquiry. Marshall Field & Co., 143 U.S. at 693–94. There are
no “basic facts to be ascertained administratively.” Opp Cotton Mills, 312 U.S. at 145.

And the act doesn’t limit the Secretary’s scope of power by requiring that he only
respond to “a justifiable fact situation.” Radio Corp. of Am., 341 U.S. at 416. No threat or harm
to health or safety must arise before the Secretary creates a standard. And even if a threat or
harm were to arise, nothing requires that the Secretary actually combat it. See 29 U.S.C.
§ 651(b)(3) (“authorizing the Secretary of Labor to set mandatory” standards, but not requiring
him to do so); id. § 655(b) (providing that the Secretary “may,” not shall, “promulgate, modify,
or revoke any . . . standard” (emphasis added)).

And this is not like other provisions in OSHA that require some sort of fact-finding. The
Secretary and other defendants point us to Benzene, a Supreme Court case interpreting another
provision of OSHA to require a fact-finding inquiry of a “significant risk of material health
impairment.” Indus. Union Dep’t, AFL-CIO v. Am. Petroleum Inst., 448 U.S. 607, 639 (1980)
(“Benzene”). Importantly, that case involved the “toxic materials or harmful physical agents”
provision in OSHA, which falls under 29 U.S.C. § 655(b)(5)—a provision that is not at issue
here. Id. at 612. A four Justice plurality assessed “the meaning of and the relationship between”
OSHA’s toxic materials provision and a provision that does apply in this case—§ 652(8), “which
defines a health and safety standard as a standard that is ‘reasonably necessary and appropriate to
provide safe or healthful employment.’” Benzene, 448 U.S. at 639 (quoting 29 U.S.C. § 652(8)).
The plurality said that § 652(8) “appl[ies] to all permanent standards promulgated under the Act
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 30

and that it requires the Secretary, before issuing any standard, to determine that it is reasonably
necessary and appropriate to remedy a significant risk of material health impairment.” Id.3

At first blush, the four-Justice plurality in Benzene may seem to answer the question of
whether the permanent standards provision in OSHA requires fact-finding. But no majority
binds our analysis. And as others have recognized, the Benzene case is not a model of clarity.
See, e.g., Antonin Scalia, A Note on the Benzene Case, Am. Enter. Inst., J. on Gov. & Soc., July-
Aug. 1980, at 25 (stating that Benzene produced “a three-one-one-four split decision that literally
provides no conclusive answer to any legal question”).

That aside, the Supreme Court later attempted to clarify what we can take away from
Benzene. See Am. Textile Mfrs. Inst., Inc. v. Donovan (Cotton Dust), 452 U.S. 490, 513 & n.32
(1981). Cotton Dust was the Court’s attempt to make sense of Benzene. It noted that § 652(8)’s
“reasonably necessary or appropriate” language “might . . . impose additional restraints” on
OSHA,” but only when combined with § 655(b)(5)’s “toxic materials” language.4 Id. For
example, the Court specified that only through the combination of § 652(8) and the toxic
materials provision could the Court get to Benzene’s “significant risk” requirement.5 Id. (“In
addition, if the use of one respirator would achieve the same reduction in health risk as the use of
five, the use of five respirators was ‘technologically and economically feasible,’ and OSHA thus
insisted on the use of five, then the ‘reasonably necessary or appropriate’ limitation might come

3Ironically, the government’s stance in Benzene is the opposite of that argued in this case. Before, the
government argued that § 652(8) “imposes no limits on the Agency’s power, and thus would not prevent it from
requiring employers to do whatever would be ‘reasonably necessary’ to eliminate all risks of any harm from their
workplaces.” Benzene, 448 U.S. at 641. Now, the government argues that § 652(8) serves as a limiting principle to
OSHA’s permanent standards provision.
4The majority opinion also recognizes this clarification from Cotton Dust. (Maj. Op. at 9 (“[A]ll
[§ 655(b)(5)] standards must be addressed to ‘significant risks’ of material health impairment.” (quoting Cotton
Dust, 452 U.S. at 513 n.32)).
5Almost every court to have addressed whether the “significant risk” requirement applies only uses the test
in relation to OSHA’s toxic materials standards, not its permanent safety standards. See Pub. Citizen Health Rsch.
Grp. v. U.S. Dep’t of Lab., 557 F.3d 165, 176 (3d Cir. 2009); Ala. Power Co. v. OSHA, 89 F.3d 740, 745–46 (11th
Cir. 1996); Nat’l Grain & Feed Ass’n v. OSHA, 866 F.2d 717, 720, 737 (5th Cir. 1988); Forging Indus. Ass’n v.
Sec’y of Lab., 773 F.2d 1436, 1442, 1444 (4th Cir. 1985); ASARCO, Inc. v. OSHA, 746 F.2d 483, 490, 495 (9th Cir.
1984). And the one case where this Court mentions “significant risk” was in dicta. In re MCP No. 165,
Occupational Safety & Health Admin., Interim Final Rule: COVID-19 Vaccination & Testing, 21 F.4th 357, 376
(6th Cir. 2021), stay application granted by Nat’l Fed’n of Indep. Bus. v. Dep’t of Lab., 142 S. Ct. 661 (2022)
(involving an emergency temporary standard, not a permanent standard).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 31

into play as an additional restriction on OSHA to choose the one-respirator standard.”). Put
differently, it’s the combination of those two provisions—§ 652(8) and § 655(b)(5)—not the
individual provisions in themselves, that get us to a “significant risk” fact-finding.

So Cotton Dust made it clear that the Supreme Court has not answered what “substantive
content” § 652(8) has and that Benzene did not answer that question. Id. (citation omitted). And
rather than address the issue, it explicitly left open the question of “all the applications that
[§ 652(8)] might have, either alone or together with [§ 655(b)(5)].” Id. Thus, the Supreme Court
has not told us what § 652(8) means or how it works with OSHA’s permanent health and safety
standards.6

With that, we have to figure it out ourselves. To do so, we must analyze whether some
sort of fact-finding requirement forms from the combination of OSHA’s definition of a standard,
29 U.S.C. § 652(8), and its permanent standards provision, id. § 655(b). It doesn’t. Start with
the permanent standards provision. See id. Again, it provides that the Secretary “may,” not
shall, “promulgate, modify, or revoke any . . . standard”—it provides nothing else. Id. And
although “may” is sometimes obligatory in a statute—and context informs that determination—
the ordinary meaning of “may” is permissive. Antonin Scalia & Bryan A. Garner, Reading Law:
The Interpretation of Legal Texts 112 (2012) (“The traditional, commonly repeated rule is that
shall is mandatory and may is permissive[.]”). And a host of contemporaneous dictionary

6On that note, we have yet to address the issue, and the two decisions of our sister circuits should not
control our analysis in this case. The D.C. Circuit has decided that Benzene’s “significant risk” requirement applies
to OSHA’s permanent standards provision without much explanation. See Nat’l Mar. Safety Ass’n v. OSHA, 649
F.3d 743, 750 n.8 (D.C. Cir. 2011). Rather than analyzing OSHA’s text, the court only reasoned that OSHA’s
permanent standards provision requires a “significant risk” fact-finding based on a “reading of subsequent Supreme
Court precedent” that dealt exclusively with OSHA’s “toxic materials” provision. Id. (citing Bldg. & Constr. Trades
Dep’t, AFL-CIO v. Brock, 838 F.2d 1258, 1263 (D.C. Cir. 1988) (discussing the Supreme Court’s approach to toxic
materials under OSHA)). So its conclusion is questionable. Cf. Panama Refin., 293 U.S. at 416 (“It will be
observed that each of these provisions contains restrictive clauses as to their respective subjects. Neither relates to
the subject of [the section that was an unconstitutional delegation].”).
Next, the Seventh Circuit addressed a challenge to the “entire Act,” not just the permanent standards provision.
Blocksom & Co. v. Marshall, 582 F.2d 1122, 1125 (7th Cir. 1978). And the court found an intelligible principle
under OSHA by pointing to many provisions that do not apply to the permanent standards provision. See id. at
1125–26. So its analysis does not help us here. All this to say, neither the Supreme Court or any circuit has
answered whether the text of the permanent standards provision could be interpreted to also require the “significant
risk” test or some other fact-finding. That’s why today’s case matters so much.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 32

definitions confirm the permissive nature of “may” in ordinary usage.7 See Taniguchi v. Kan
Pac. Saipan, Ltd., 566 U.S. 560, 568 (2012) (“That a definition is broad enough to encompass
one sense of a word does not establish that the word is ordinarily understood in that sense.”); see
also, e.g., Nat’l Wildlife Fed’n v. Sec’y of U.S. Dep’t of Transp., 960 F.3d 872, 877 (6th Cir.
2020) (“The clearest case of ‘discretion’ is when an agency doesn’t have to act—for instance, if
a statute says ‘may’ rather than ‘must’ or ‘shall.’”); Minor v. Mechanics’ Bank of Alexandria,
26 U.S. (1 Pet.) 46, 64 (1828) (exploring the difference between “may” and “must” and
explaining that “[t]he ordinary meaning of the language, must be presumed to be intended, unless
it would manifestly defeat the object of the provisions”); Dawson v. Chemical Co. v. Rohm &
Haas Co., 448 U.S. 176, 201 (1980) (“The statute states that a patentee may do ‘one or more’ of
these permitted acts, and it does not state that he must do any of them.”).

And context matters here. See Dubin v. United States, 143 S. Ct. 1557, 1565 (2023)
(explaining that where there are “various definitions” to a word, “we will look not only to the
word itself, but also to the statute and the surrounding scheme, to determine the meaning
Congress intended” (cleaned up)). Congress knew how to use obligatory language when it
wanted to in OSHA.

For example, comparing OSHA’s permanent standards provision to its toxic materials
provision (at issue in Benzene) shows how bare it is. Unlike the permanent standards provision,
the toxic materials provision lists considerations and requirements. See 29 U.S.C. § 655(b)(5).
It specifies that the Secretary “shall set the standard which most adequately assures, to the extent
feasible, . . . that no employee will suffer material impairment of health or functional capacity
even if such employee has regular exposure to the hazard dealt with by such standard for the

7See May, Random House Dictionary 886 (1967) (explaining that “may” is used “to express possibility,
opportunity, or permission”); May, Black’s Law Dictionary 1131 (1968) (defining “may” as “[a]n auxiliary verb
qualifying the meaning of another verb by expressing ability, competency, liberty, permission, possibility,
probability or contingency” and that “may” is construed as “shall” or “must” only “to the end that justice may not be
the slave to grammar”); May, Webster’s Third New International Dictionary 1396 (1971) (explaining that “may”
means to “be in some degree likely to” but can mean “must” in some “deeds, contracts, and statutes”); May, The
American Heritage Dictionary of the English Language 808 (1969) (listing multiple meanings, among them
“Possibility,” “Ability or capacity,” and “Desire or fervent wish” but explaining that “may” can mean an
“[o]bligation or function with the force of must” in some legal documents); May, The American College Dictionary
753 (1970) (explaining that “may” is “used as an auxiliary to express . . . possibility, opportunity or permission” but
noting that it may mean “must” (when used not to confer a favor, but to impose a duty)”).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 33

period of his working life.” Id. (emphasis added). And before getting to that decision, it requires
the Secretary to base his decision on “the best available evidence,” including “research,
demonstrations, experiments, and such other information as may be appropriate.” Id.

And that’s not all. The toxic materials provision also lists “other considerations” that the
Secretary must consider, including “the latest available scientific data in the field, the feasibility
of the standards, and experience gained under this and other health and safety laws.” Id. By
contrast, the permanent standards provision contains no criteria or considerations that guide how
the Secretary creates a standard for workplaces across the Nation. See infra Part II.B.

The next relevant provision is OSHA’s definition of a standard. 29 U.S.C. § 652(8).
OSHA broadly defines “occupational safety and health standard” as a standard which requires
conditions, or the adoption or use of one or more practices, means, methods, operations, or
processes” that the Secretary thinks “reasonably necessary or appropriate to provide safe or
healthful employment and places of employment.” Id. (emphasis added); see infra Part II.B. By
pairing the two provisions together, the meaning is clear: OSHA authorizes the Secretary to
make standards that he believes are “appropriate.” But that’s it. There’s no more to it. No fact-
finding is required. As a result, I find no intelligible principle under Panama Refining and
Schechter Poultry’s fact-finding or specific-situation consideration.

One could argue that because the Secretary must provide standards that ensure “safe or
healthful employment and places of employment,” 29 U.S.C. § 652(8), he must first find
“unsafe” or “unhealthful” employment and places of employment. Again, the text does not
indicate that such a finding must take place. But even if we were to broadly read that
requirement into the text, Supreme Court precedent informs us that a statute’s “general outline of
policy” is not enough. Panama Refin., 293 U.S. at 417. We cannot just take the inverse of every
general phrase in a statute to fabricate a rule that it never had. Cf. Schechter Poultry, 295 U.S. at
541. And even if we did, here it would still leave the Secretary’s power “virtually unfettered.”
Id. at 542. Unlike Benzene, we are not just talking about toxic materials. Rather, permanent
standards can address anything that the Secretary deems not conducive to “safe or healthful
employment and places of employment.” 29 U.S.C. § 652(8). Indeed, the scope of power here
(general safety and health in every workplace) is broader than just toxic materials in some
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 34

workplaces (like in Benzene). So the constraint, if any, does not make a meaningful difference
on the Secretary’s power to find any standard appropriate.

B.

Second, given the large scope of power that Congress conferred, the permanent standards
provision does not contain standards that sufficiently guide the Secretary’s discretion. See
Schechter Poultry, 295 U.S. at 541–42; Panama Refining, 293 U.S. at 417–18, 430; Whitman,
531 U.S. at 475. OSHA’s permanent standards provision specifies nothing that the Secretary
“must conform to”—no “criterion” to guide what standards he should make. Sunshine
Anthracite Coal Co., 310 U.S. at 397–98. It does not require that the Secretary consider any
“factors” or that he ignore “prohibited” factors while formulating a standard. Mistretta, 488 U.S.
at 375; see also Touby, 500 U.S. at 167 (“It is clear that . . . Congress has placed multiple
specific restrictions on the Attorney General’s discretion[.]”). Unlike other provisions, even
within OSHA, see 29 U.S.C. § 655(b)(5), the permanent standards provision does not require
consideration of “the latest scientific knowledge” or the like. Whitman, 531 U.S. at 473. Nor
does it provide “directions” or “consideration” of something like a “base” level of safety. Yakus,
321 U.S. at 419, 427.

The main provision that the Secretary and other defendants claim provides some sort of
limit on the Secretary’s discretion is OSHA’s definition of an “occupational safety and health
standard.” 29 U.S.C. § 652(8). Read in tandem with the permanent standards provision, the
Secretary “may” set mandatory standards, see id. § 655(b), that employers and employees must
“comply with,” id. § 654, including “conditions, or the adoption or use of one or more practices,
means, methods, operations, or processes,” id. § 652(8).8 As the Secretary and other defendants

8The majority opinion reasons that “OSHA cannot merely issue any standard it likes; rather, a safety risk
must be one that ‘requires’ some action for a safe workplace.” (Maj. Op. at 9 (citing 29 U.S.C. § 652(8)). I read the
statute differently. Again, the Secretary “may,” not must, issue a standard. 29 U.S.C. § 655(b). And that standard
will “require[] conditions, or the adoption or use of one or more practices, means, methods, operations, or
processes.” 29 U.S.C. § 652(8) (emphasis added). Importantly, that “require[ment]” language pertains to
employees or employers, not the Secretary. Id. So this is unlike cases that have required the Executive to meet a
certain set of criteria. See Whitman, 531 U.S. at 473 (requiring an agency—not those it regulates—to consider “the
latest scientific knowledge” before promulgating standards “requisite to protect public health”). Here, the Secretary
is not bound by this “requires” language. 29 U.S.C. § 652(8). Put simply: The Secretary may create any
“conditions, . . . practices, means, methods, operations, or processes” in workplaces, and employees and employers
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 35

argue, those “conditions” or “the adoption” of means or the like must also be “reasonably
necessary or appropriate to provide safe or healthful employment and places of employment.”
Id. (emphasis added). And it’s this phrase, “reasonably necessary or appropriate,” id., that
supposedly limits the Secretary’s power to set permanent standards.9

Before getting to the phrase, it’s worth pointing out that no Supreme Court case has
found that the phrasing of a law—i.e., the usage of the phrase “reasonably necessary or
appropriate” in § 652(8)—alone creates an intelligible principle. True, the Supreme Court has
“over and over upheld” what appear to be “even very broad delegations.” Gundy, 139 S. Ct. at
2129 (plurality). For example, it has approved delegations to various agencies to regulate in the
“public interest,” Nat’l Broad. Co., 319 U.S. at 216, has allowed agencies to set “fair and
equitable” prices and “just and reasonable” rates, Yakus, 321 U.S. at 420, 427 (citation omitted),
and has affirmed a delegation to an agency to issue whatever air quality standards are “requisite
to protect the public health,” Whitman, 531 U.S. at 472 (citation omitted). But in each case,
other factors—whether it be fact-finding, situations, criteria, or considerations—provided an
agency sufficient guidance on the “boundaries of [its] authority.” Gundy, 139 S. Ct. at 2129
(plurality) (citing Am. Power & Light Co., 329 U.S. at 105); see supra Part I.B–C. Those factors
are what constituted intelligible principles—not one, isolated phrase that doesn’t create a fact-
finding requirement. See supra Part II.A; Cotton Dust, 452 U.S. at 513 n.31.

Even so, if phrasing matters, it doesn’t change the game here. The word “or” in the
phrase, “reasonably necessary or appropriate,” creates two alternatives for the Secretary to
choose from. 29 U.S.C. § 652(8) (emphasis added); see Scalia & Garner, Reading Law: The
Interpretation of Legal Texts 116 (discussing the disjunctive canon of interpretation). That

must abide by those requirements. Id. So rather than limiting the Secretary’s discretion to issue a standard, it
strengthens his delegated authority by “requir[ing]” others to comply with the standards he may create. Id.; see id.
§ 654.
9The Secretary and other defendants argue that, under Cotton Dust, the statutory phrase “reasonably
necessary or appropriate” in 29 U.S.C. § 652(8) limits the Secretary to promulgating only permanent standards that
are “economically” and “technologically feasible.” 452 U.S. at 513 n.31. But that stretches Cotton Dust too far.
Cotton Dust clarified that the Court only addressed how § 652(8)’s language works together with the toxic standards
provision—the provision that explicitly requires standards to ensure that no employee will suffer a “material
impairment of health” “to the extent feasible.” 29 U.S.C. § 655(b)(5); see Cotton Dust, 452 U.S. at 513 n.32; supra
Part II.A.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 36

disjunctive phrase allows the Secretary to set mandatory standards that are “reasonably
necessary.”10 29 U.S.C. § 652(8). Or he can set standards if he believes them to be
“appropriate”—they need not also be “reasonably necessary.” Id.

Seeing that OSHA provides no other definition, criterion, or consideration for what it
means to be “appropriate,” I turn to its definition at the time of OSHA’s enactment. See Keen v.
Helson, 930 F.3d 799, 802 (6th Cir. 2019) (“When interpreting the words of a statute,
contemporaneous dictionaries are the best place to start.”). The term “appropriate” means
“[s]uitable for a particular person, condition, occasion or place; proper; fitting.” Appropriate,
The American Heritage Dictionary of the English Language 64 (1969).11 And because OSHA
“authoriz[es] the Secretary” (and him alone) “to set mandatory [permanent] standards,” 29
U.S.C. § 651(b)(3), as well as the discretion to “by rule promulgate” them, he alone “may,” id.
§ 655(b), determine what standard is “appropriate,” id. § 652(8).

With that in mind, the term “appropriate” and its implications are far-reaching. See Cass
R. Sunstein, Is OSHA Unconstitutional?, 94 Va. L. Rev. 1407, 1431 (2008) (“[T]he ‘reasonably
necessary or appropriate’ clause is plausibly different” from other clauses in other cases
“because that phrase seems to allow (but not to require) the agency to use some form of cost-
benefit analysis as a rule of decision.”). Indeed “appropriate” is “the classic broad and all-
encompassing term that naturally and traditionally includes consideration of all the relevant
factors.” Michigan v. EPA, 576 U.S. 743, 752 (2015) (citation omitted). Notably, “this term
leaves agencies with flexibility,” id., because the language is “open-ended,” Tanzin v. Tanvir,
141 S. Ct. 486, 491 (2020) (citation omitted). And its limit, if any, depends on the statutory
context that Congress places the term in. Id.; see Michigan, 576 U.S. at 752.

10The phrase, “reasonably necessary,” might be narrower than the other phrase, “appropriate.”29 U.S.C.
§ 652(8). But it is still broad. The phrase offers no indication of how the Secretary can determine what is
“reasonably necessary.” Because the Secretary’s choice to set standards that are merely “appropriate” could be
broader though, my analysis focuses on that option.
11Other dictionaries from around 1970 have almost identical definitions. See, e.g., Appropriate, The
American College Dictionary 62 (1970) (“suitable or fitting for a particular purpose, person, occasion, etc.”);
Appropriate, The Random House Dictionary of the English Language 74 (1967) (same).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 37

The problem here is that OSHA’s context does not inform what “appropriate” refers to.
The term, working in tandem with the permanent standards provision, doesn’t seem to require
anything but the Secretary asking: “What seems appropriate in workplaces around the nation?”
Knowing this, the term “appropriate” could encompass almost anything in a workplace setting
because the term means whatever the Secretary himself finds suitable.

Against that premise, however, the Secretary and other defendants direct us to general
purpose statements in OSHA that the Secretary may—though, is not required to—consider
before implementing a standard. “As [OSHA’s] name suggests,” Congress tasked the Secretary
“with ensuring occupational safety,” Nat’l Fed’n of Indep. Bus. v. Dep’t of Lab., 142 S. Ct. 661,
663 (2022), or in other words, ensuring “safe and healthful working conditions” “so far as
possible,” 29 U.S.C. § 651(b). So to address “personal injuries and illnesses arising out of work
situations,” id. § 651(a), Congress sought “to regulate commerce among the several States and
with foreign nations and to provide for the general welfare, to assure so far as possible every
working man and woman in the Nation safe and healthful working conditions and to preserve our
human resources,” id. § 651(b).

These purpose statements “in no way limit the authority which [OSHA] undertakes to
vest in the [Secretary] with no other conditions than those there specified.” Schechter Poultry,
295 U.S. at 539. Nothing limits the “breadth of the [Secretary’s] discretion” or narrows the
“wide field of legislative possibilities.” Id. at 538. “Congress cannot delegate legislative power
to the [Secretary] to exercise an unfettered discretion to make whatever laws he thinks may be”
appropriate for safe and healthful working conditions across the country. Id. at 537–38. Even
though the general purposes of OSHA give the Secretary a few possible considerations, nothing
requires him to consider them in determining what’s appropriate given any situation. See
Panama Refining, 293 U.S. at 431–32.

Congress, when enacting OSHA’s permanent standards provision, did not specify what
safe and healthful working conditions governed almost every business in the United States.
Instead, OSHA vests the Secretary of Labor with that power—the discretion of whether to create
a standard and of what standard to create. OSHA “authoriz[es] the Secretary . . . to set
mandatory occupational safety and health standards applicable to businesses affecting interstate
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 38

commerce.” 29 U.S.C. § 651(b)(3). It does not mandate that the Secretary enforce a specific
standard or even that he create one—just that he “may” create one.12 Id. § 655(b). Said
differently, OSHA does not direct the Secretary to act “simply in execution of the act of
[C]ongress.”13 Marshall Field & Co., 143 U.S. at 693.

“To hold that [the Secretary] is free to select as he chooses from the many and various
objects generally described in [OSHA’s purpose statements], and then to act without making any
finding with respect to any object that he does select, and the circumstances properly related to
that object, would be in effect to make the conditions inoperative and to invest him with an
uncontrolled legislative power.” Panama Refin., 293 U.S. at 431–32.

Other than a “general outline of policy,” id. at 417, Appellants point to three other
sections in OSHA that supposedly affect the Secretary’s enforcement of permanent standards.

12And OSHA doesn’t require the Secretary to promulgate and modify permanent standards to serve the
act’s objectives. The only provision that requires that some standard be made, 29 U.S.C. § 655(a), is not the
permanent standards provision, § 655(b). Looking at those two provisions, the Secretary was required to promulgate
a permanent “occupational health and safety standard” under OSHA within its first two years of enactment.
29 U.S.C. § 655(a) (“[T]he Secretary shall, as soon as practicable during the period beginning with the effective date
of this chapter and ending two years after such date, by rule promulgate . . . an occupational safety or health
standard[.]”). Once that requirement was met—and it was—the Secretary was no longer obligated to promulgate
any other permanent occupational health and safety standard.
So it’s optional at this point. And what makes that clear is reading the permanent standards provision—the only
provision at issue here. Id. § 655(b). It explains that “[t]he Secretary may”—not shall—“by rule promulgate,
modify, or revoke any occupational safety or health standard.” Id. (emphasis added). And if the Secretary chooses
to do so in his discretion, he is then subject to some procedural requirements that do not limit the scope of what
those standards may require. See infra pp. 27–28. And yes, if the Secretary wants to regulate, then he must take
certain steps (i.e., he “shall” publish a rule in the Federal Register and “shall” afford interested persons time to
respond). Id. § 655(b)(2). But again, those procedural requirements, id. § 655(b)(1)–(4) (including that the
Secretary “shall” conform to a few procedural requirements), are all conditioned on him making the decision to
promulgate in the first place, id. § 655(b) (“The Secretary may by rule promulgate . . . [a] standard in the following
manner[.]” (emphasis added)). I would instead read § 655(b)’s clear prefacing condition to “relate[] to all [its]
following . . . subparts.” Scalia & Garner, Reading Law: The Interpretation of Legal Texts 156 (discussing the
scope-of-subparts canon); see Davis v. Mich. Dep’t of Treasury, 489 U.S. 803, 809 (1989) (“[S]tatutory language
cannot be construed in a vacuum. It is a fundamental canon of statutory construction that the words of a statute must
be read in their context and with a view to their place in the overall statutory scheme.”).
13The majority states that “Congress has indeed laid out the general policy (a safe working environment).”
(Maj. Op. at 15.) To be clear, that kind of general policy does not itself establish the required intelligible principle.
See Schechter Poultry, 295 U.S. at 541–42. As explained, general “statement[s] of the authorized objectives,” id. at
534, or “broad declaration[s]”—like OSHA’s general purpose statements—that leave Executive discretion “virtually
unfettered” do not provide a policy that fixes a nondelegation problem, id. at 542.
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 39

By no means do the sections limit the Secretary’s discretion in creating a standard. Thus, they
cannot function as an intelligible principle.

First, OSHA’s procedural requirements. See 29 U.S.C. § 655(b)(1)–(3). Like other rule
makings, see 5 U.S.C. § 553(b), (c), the Secretary must first publish the proposed standard in the
Federal Register and allow interested persons thirty days to submit comments or request a
hearing. 29 U.S.C. § 655(b)(2). After that, the Secretary has the choice of consulting an
advisory committee that may submit optional recommendations. Id. § 655(b)(1). At that point,
it’s up to the Secretary to decide whether to issue a rule, so long as he does so within a
designated time frame. Id. § 655(b)(2). And if the rule “differs substantially” from an existing
national standard, he must state the “reasons” for why the adopted rule would “better effectuate
the purposes of” OSHA.14 Id. § 655(b)(8). These common procedural requirements, however,
relate only to how the Secretary must promulgate, “not to the permissible scope of such
[standards].” Schechter Poultry, 295 U.S. at 538. So they do not require the Secretary to enforce
a specific policy, nor do they limit what standard he can create.

Second, OSHA’s penalties provisions get tacked on as a punishment to any standard the
Secretary promulgates. Depending on how employers violate a standard, they may face a
citation, civil penalties, or even imprisonment. 29 U.S.C. §§ 658, 666. True enough, the
Secretary cannot alter these penalties. “But [they] leave virtually untouched the field of policy
envisaged by” OSHA’s permanent standards. Schechter Poultry, 295 U.S. at 538. Nothing in
OSHA’s penalties provisions constrains “that wide field of legislative possibilities.” Id. Indeed,
the Secretary “may roam at will,” promulgating a standard “as he may see fit.” Id.; see also id.

14The Secretary and other defendants argue that this requirement—to explain why the new standard will
“better effectuate” the purposes of OSHA—serves as a limitation. 29 U.S.C. § 655(b)(8). But, as they
acknowledge, the requirement only kicks in when the Secretary “regulates in an area that is addressed by national
consensus standards.” (Secretary’s Br. at 18.) The provision doesn’t apply to situations in which no national
consensus standard governs already. See 29 U.S.C. § 655(b)(8) (only applying when the Secretary promulgates a
rule that “substantially differs from an existing national consensus standard”). And more importantly, merely
explaining why the Secretary is implementing a new standard does not limit the “permissible scope” of any
congressional standard. Schechter Poultry, 295 U.S. at 538. If it did, every regulation that required some sort of
explanation could fix a latent nondelegation problem. But as we know, that’s not the case. See Whitman, 531 U.S.
at 473 (rejecting the idea that an agency “can cure an unconstitutionally standardless delegation of power”). For the
same reason, OSHA’s requirement that the Secretary include a “statement of the reasons” when adopting “any
standard” does not limit his discretion. 29 U.S.C. § 655(e).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 40

at 523 (finding a delegation violation, even when the statute specified that violations of current
or future codes could result in a misdemeanor and a daily accruing fine). As with OSHA’s
procedural requirements, its penalties don’t guide the Secretary on how to create a workplace
standard.

Third, OSHA specifies that “[i]n the event of conflict among any such standards, the
Secretary shall promulgate the standard which assures the greatest protection of the safety or
health of the affected employees.” 29 U.S.C. § 655(a). The Secretary and other defendants
claim that this provision serves as a limit. But for the same reasons explained, this requirement
to promulgate the provision with a greater effect on safety does not limit the “permissible scope”
of what the Secretary can regulate. Schechter Poultry, 295 U.S. at 538. For any “conflict” to
arise, 29 U.S.C. § 655(a), the Secretary would need to promulgate at least two standards—
standards (1) that Congress did not make itself and (2) that the Secretary has wide discretion in
crafting. And if a conflict between any old and new standard were to arise, it seems that the
Secretary must choose the broader of the two. 29 U.S.C. § 655(a). So the provision doesn’t
limit discretion—it seems to only expand discretion by requiring the Secretary to do more than
he did the last time around. And in any case, allowing the Secretary to limit himself based on a
previous standard that he also created would seem to allow him to “cure an unconstitutionally
standardless delegation of power” rather than leaving that to Congress—which we cannot allow.
Whitman, 531 U.S. at 473.

So looking at all of these provisions, I would find OSHA’s permanent standards
provision unconstitutional because the “absence of standards” here makes it “impossible . . . to
ascertain whether the will of Congress has been obeyed.” Yakus, 321 U.S. at 426. How can we
test what is appropriate given the broad field of delegated power? The simple answer: We can’t.
That’s because Congress has not “made clear” whether any “boundaries of . . . authority” exist.
Gundy, 139 S. Ct. at 2129 (plurality) (quoting Am. Power & Light Co., 329 U.S. at 105).
Because Congress failed to provide the Secretary “with standards guiding its actions such that a
court could ‘ascertain whether the will of Congress has been obeyed,’” I would hold that a
“delegation of legislative authority trenching on the principle of separation of powers has
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occurred.” Skinner v. Mid- Am. Pipeline Co., 490 U.S. 212, 218 (1989) (quoting Mistretta, 488
U.S. at 379) (reaffirming this “longstanding principle”); see Yakus, 321 U.S. at 426.

Even if one were to derive some broad standard, it would not sufficiently guide the
Secretary’s discretion. Again, the amount of guidance Congress must provide to carry out its
legislation varies by how much power it delegates to a federal agency. Whitman, 531 U.S. at 475
(“[T]he degree of agency discretion that is acceptable varies according to the scope of the power
congressionally conferred.”); Wayman, 23 U.S. (10 Wheat.) at 43 (“To determine the character
of the power given to [an entity] by the [legislation], we must inquire into its extent.”); Tiger
Lily, LLC, 5 F.4th at 672 (recognizing the same and that “unfettered power would likely require
greater guidance”); see also Synar v. United States, 626 F. Supp. 1374, 1386 (D.D.C. 1986)
(“When the scope increases to immense proportions (as in Schechter) the standards must be
correspondingly more precise.”), aff’d sub nom. Bowsher v. Synar, 478 U.S. 714 (1986). Sure,
“Congress need not provide any direction” when the field of power is narrow in itself—such as a
delegation to define “country elevators” which would be “exempt from” the new regulations.
Whitman, 531 U.S. at 475 (citing 42 U.S.C. § 7411(i)). But when the grant of power is bigger,
such that it can “affect the entire national economy,” Congress “must provide substantial
guidance.” Id.

Surely OSHA—a statute affecting practically every business in the United States—falls
into the latter of the two. See Sunstein, supra, at 1429 (“[B]ecause OSHA covers essentially all
American workers, the existence of untrammeled discretion would be a serious problem.”). This
isn’t a statute that only pertains to one industry. See N.Y. Cent. Secs. Corp., 287 U.S. at 24–25
(railroad); Nat’l Broad. Co., 319 U.S. at 214 (radio); Sunshine Anthracite, 310 U.S. at 387 (coal).
And the power vested is not just “temporary.” Yakus, 321 U.S. at 419 (“temporary wartime
measure”). Nor does the power seem to be a traditional executive function.15 See id. at 424.

15Another trend—one that does not relate to the delegation in this case—focuses on “whether the particular
function” vested by a legislative act “requires the exercise of a certain type of power.” Dep’t of Transp., 575 U.S. at
69 (Thomas, J., concurring in the judgment); see id. at 70 (“The function at issue here is the formulation of generally
applicable rules of private conduct. Under the original understanding of the Constitution, that function requires the
exercise of legislative power.”). Indeed, “Congress may assign the executive and judicial branches certain non-
legislative responsibilities.” Gundy, 139 S. Ct. at 2137 (2019) (Gorsuch, J., dissenting). Many cases, for instance,
granted powers that would seem to fall in the Executive’s job description, such as matters dealing with war and
foreign exchange. See generally Yakus, 321 U.S. at 420, 426–27 (vesting the inherently executive warpower to an
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 42

Instead, OSHA delegates broad power over every industry that has a workplace (probably all of
them)—power to create permanent health and safety standards that would not traditionally fall
within the Executive Branch’s wheelhouse.16 In other words, OSHA allows the Secretary to
regulate private conduct in workplaces by any means “appropriate.”17 29 U.S.C. § 652(8).

official to control pricing of commodities if doing so was “fair and equitable” after considering a list of factors);
Marshall Field & Co., 143 U.S. at 692–93, 697 (enforcing foreign trade suspension under the policy established by
Congress); J.W. Hampton, Jr., & Co., 276 U.S. at 411 (enforcing a price-fixing policy over foreign and domestic
products because the President was a “mere agent of the lawmaking department”); see generally Gundy, 139 S. Ct.
at 2144 (Gorsuch, J., dissenting) (“Congress may assign the President broad authority regarding the conduct of
foreign affairs or other matters where he enjoys his own inherent Article II powers.”); Gilligan v. Morgan, 413 U.S.
1, 10 (1973) (“The complex[,] subtle, and professional decisions as to the composition, training, equipping, and
control of a military force are essentially professional military judgments, subject always to civilian control of the
Legislative and Executive Branches.”).
16What should make us especially skeptical of the lack of guidance here is that the Secretary gets
“authority to regulate an area—public health and safety—traditionally regulated by the States.” In re MCP No. 165,
Occupational Safety & Health Admin., Interim Final Rule: COVID-19 Vaccination & Testing, 20 F.4th 264, 267
(6th Cir. 2021) (Sutton, C.J., dissenting from the denial of initial hearing en banc); see id. at 287 (Bush, J.,
dissenting from the denial of initial hearing en banc) (“Part and parcel of that traditional police power—and thus an
authority ‘reserved to the States’—is the power to regulate public health.” (citing U.S. Const. amend. X; Jacobson v.
Massachusetts, 197 U.S. 11, 25 (1905))). “There is no question that state and local authorities possess considerable
power to regulate public health.” Nat’l Fed’n of Indep. Bus., 142 S. Ct. at 667 (Gorsuch, J., concurring). “[S]everal
extant legal bodies possess significant authority to clamp down on unreasonable dangers: Congress, state
legislatures, state regulators, courts applying state tort law.” SeaWorld of Fla., LLC v. Perez, 748 F.3d 1202, 1222
(D.C. Cir. 2014) (Kavanaugh, J., dissenting). That’s because the states enjoy the “general power of governing,”
including all sovereign powers envisioned by the Constitution and not specifically vested in the federal government.
Nat’l Fed. of Indep. Bus. v. Sebelius, 567 U.S. 519, 536 (2012); see U.S. Const. amend. X.
17Though I believe that the Plaintiffs here ought to prevail under existing doctrine, were the Court to revisit
how nondelegation under Article I operates, it ought to consider what Congress historically delegated to federal
officials around the Framing. Some scholars have recognized that early delegations to the Executive are different
from the delegations we typically see today. That’s because, before, the statutes authorized the executive to create
rules that were only “binding” on executive officials, not members of the public. Philip Hamburger, Is
Administrative Law Unlawful? 89 (2014); see id. at 84 (explaining that early delegation “statutes . . . assumed that
executive officers could issue directions merely to lesser officers, not to the rest of the public”); see id. at 95 (“What
was controversial was the extent to which executive interpretations and instructions could direct inferior officers and
what this meant, not whether such directives bound the public.”); Wurman, supra, at 1556 (“Private rights and
conduct are undoubtedly more important than official conduct or public privileges, but that does not mean Congress
could delegate unlimited discretion over the latter, and no discretion over the former.”); see also Paul J. Larkin,
Revitalizing the Nondelegation Doctrine, 23 Federalist Soc’y Rev. 238, 247–48 (2022) (discussing Professor
Jonathan Adler and Professor John Harrison’s views on how the nondelegation doctrine works with statutes
delegating rulemaking authority over private conduct).
Some Justices have already noted this issue. See, e.g., Dep’t of Transp., 575 U.S. at 86 (Thomas, J., concurring in
the judgment) (“We should return to the original meaning of the Constitution: The Government may create
generally applicable rules of private conduct only through the proper exercise of legislative power.”); West Virginia
v. EPA, 142 S. Ct. 2587, 2618 (2022) (Gorsuch, J., concurring) (“The framers believed that the power to make new
laws regulating private conduct was a grave one that could, if not properly checked, pose a serious threat to
individual liberty.”); see also Gundy, 139 S. Ct. at 2144 (Gorsuch, J., dissenting) (“If the separation of powers
means anything, it must mean that Congress cannot give the executive branch a blank check to write a code of
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 43

And there is no telling what the Secretary might deem “appropriate” to do—especially in a post-
COVID world where the “place[] of employment” might include your house.18 Id.

Given that OSHA’s permanent standards provision vests large power in the Secretary, the
details limiting his discretion must be correspondingly detailed. Yet they’re not. OSHA’s very
few requirements do not constrain the Secretary’s broad power.

True, the standards that the Supreme Court has approved in the face of nondelegation
challenges “are not demanding.” Big Time Vapes, Inc. v. FDA., 963 F.3d 436, 442 (5th Cir.
2020) (Smith, J.) (quoting Gundy, 139 S. Ct. at 2129 (plurality)). Even so, OSHA fails to match
even these minimal standards. Thus, I find no intelligible principle based on Panama Refining
and Schechter Poultry’s second consideration—that is, there is no sufficient standard here.

* * *

OSHA’s permanent standards provision does not have an intelligible principle.19 That’s
because it (1) requires no fact-finding or situation to arise before agency actions takes place and
(2) provides no standard that sufficiently guides the exercise of the broad authority vested in the

conduct governing private conduct for a half-million people.”); United States v. Nichols, 784 F.3d 666, 671 (10th
Cir. 2015) (Gorsuch, J., dissenting from the denial of rehearing en banc) (“Congress can’t punt to the President the
job of devising a competition code for the chicken industry . . . . Such widely applicable rules governing private
conduct must be enacted by the Legislature.”).
18The Secretary and other defendants argue that OSHA’s scope is limited because it “empowers the
Secretary to set workplace safety standards, not broad public health measures.” Nat’l Fed’n of Indep. Bus., 142 S.
Ct. at 665 (involving a COVID-19 vaccine mandate). That may be true. But nothing changes OSHA’s explicit
vesting of broad authority that the Secretary has the power to create “safe and healthful working conditions” for
“every working man and woman in the Nation.” 29 U.S.C. § 651(b). All he must do is find a standard
“appropriate” for some rhyme or reason. Id. § 652(8); see Nat’l Fed’n of Indep. Bus., 142 S. Ct. at 665–66 (“Where
[COVID-19] poses a special danger because of the particular features of an employee’s job or workplace, targeted
regulations are plainly permissible.”).
19The Secretary and other defendants appeal to the canon of constitutional avoidance, arguing that this
Court should avoid holding that the permanent standards provision is unconstitutional because a constitutional
interpretation of the text exists. (Secretary’s Br. at 18.) But that canon “comes into play only when, after the
application of ordinary textual analysis, the statute is found to be susceptible of more than one construction.”
Jennings v. Rodriguez, 138 S. Ct. 830, 842 (2018) (citation omitted); see Scalia & Garner, Reading Law: The
Interpretation of Legal Texts 247 (discussing the constitutional-doubt canon). As explained, this is not a time when
we have “more than one plausible construction.” Jennings, 138 S. Ct. at 842. So “the canon simply has no
application” here. Id. (cleaned up).
 No. 22-3772 Allstates Refractory Contractors v. Su, et al. Page 44

Secretary. As a result, OSHA violates Article I as an unconstitutional delegation of legislative
power. So I respectfully dissent.

I recognize that successful nondelegation cases are few and far between. But I emphasize
that—even under the minimal requirements needed to find an “intelligible principle”—OSHA’s
permanent standards provision does not pass muster.

III.

For these reasons, I respectfully dissent and would reverse the district court’s judgment.