UNITED STATES DISTRICT COURT
FOR THE DISTRICT OF COLUMBIA
HUMANE SOCIETY OF THE UNITED
STATES, et al.,
Plaintiffs, Civil Action No. 19-cv-2458 (BAH)
v. Judge Beryl A. Howell
UNITED STATES DEPARTMENT OF
AGRICULTURE, et al.,
Defendants.
MEMORANDUM OPINION
Plaintiffs, animal welfare organizations and their members, initiated the instant action in
August 2019 to challenge the Department of Agriculture’s withdrawal in January 2017, of a rule
filed for public inspection earlier that month. See Compl., Ex. D, Letter from USDA Regul.
Analysis & Dev. Chief Steve O’Neill to Off. of the Fed. Register Dir. Oliver Potts (undated)
(“Repeal Action”), ECF No. 1-4. The withdrawn rule would have overhauled the Department’s
enforcement of the Horse Protection Act, a law passed over fifty years ago to eradicate a practice
called “soring” in which competitive show horses’ legs are cut, burned, or otherwise hurt in
order to alter their natural gait. See Compl., Ex. B (“2017 Anti-Soring Enforcement Rule”), ECF
No. 1-2; Compl. ¶¶ 1–10, ECF No. 1. 1 Over the course of more than three years of litigation, the
1
Since the 2017 Anti-Soring Enforcement Rule was never published in the Federal Register, no single,
authoritative version of the rule has been filed on the record in this case. Plaintiffs’ complaint attached, as Exhibit
A, the version of this rule posted on the USDA Animal and Plant Health Inspection Service (APHIS) website as of
August 13, 2019, and as Exhibit B, the version produced by APHIS in response to a Freedom of Information Act
request by plaintiffs. See Compl. at 3, n.1. Defendants have cited Exhibit B when describing what they called the
“Pre-Publication Rule” sent by USDA to the Office of the Federal Register in January 2017. Defs.’ Mot. Dismiss at
15, ECF No. 19-1. For the sake of clarity, to the extent any differences exist between the two documents, the Court
follows defendants in referring to Exhibit B of plaintiffs’ complaint as the version of the 2017 Anti-Soring
Enforcement Rule transmitted to the Office of the Federal Register.
1
district court first granted defendants’ motion to dismiss, Humane Soc’y of the United States v.
USDA (“Humane Soc’y I”), 474 F. Supp. 3d 320 (D.D.C. 2020) (Huvelle, J.), allowing the
withdrawal and effective repeal of the 2017 Anti-Soring Enforcement Rule. 2 Then, the D.C.
Circuit reversed, holding that, although never published in the Federal Register, the 2017 Anti-
Soring Enforcement Rule passed the “regulatory point of no return” upon its filing for public
inspection and the agency’s withdrawal without notice and comment was consequently unlawful.
Humane Soc’y of the United States v. USDA (“Humane Soc’y II”), 41 F.4th 564, 568–75 (D.C.
Cir. 2022). With the agency’s Repeal Action deemed unlawful, the only question now before
this Court is whether the 2017 Anti-Soring Enforcement Rule, which should be in its sixth year
of implementation, should be permitted, zombie-like, to spring to life by vacating the agency
Repeal Action, or whether to maintain the status quo by remanding without vacatur, at least for
some period of time.
Pending before this Court are five motions concerning this remedial phase of the
litigation, grouped around two core issues. First, shortly after the issuance of the D.C. Circuit
mandate, the Tennessee Walking Horse National Celebration Association (the “Association”)
filed a motion to intervene, see Tennessee Walking Horse Nat’l Celebration Ass’n’s Mot.
Intervene (“Horse Ass’n’s Mot. Intervene”), ECF No. 33; in the alternative, the Association
moved to participate as amicus curiae, see Tennessee Walking Horse Nat’l Celebration Ass’n’s
Conditional, Unopposed Mot. File as Amicus Curiae, ECF No. 48. Second, the Association,
plaintiffs, and defendants have each filed cross-motions as to the proper remedy in this case, with
2
This case was originally assigned to Judge Emmet Sullivan, then reassigned by consent on June 15, 2020 to
Judge Ellen Huvelle. Upon the issuance of the D.C. Circuit mandate, on December 14, 2022, the case was
reassigned to the undersigned due to the retirement of Judge Huvelle.
2
plaintiffs arguing that the unlawful Repeal Action should be vacated, and defendants and the
Association contending that remand without vacatur is the appropriate disposition.
For the reasons set forth below, the Association’s motion to intervene is granted, and the
Court determines that the proper remedy is remand, without vacatur, for USDA to take
appropriate remedial action within 120 days. If USDA fails to do so, the unlawful Repeal Action
will be vacated, unless the agency demonstrates within ten days of the issuance of this decision
compelling need for additional time.
I. BACKGROUND
The statutory and regulatory scheme underlying the parties’ dispute is described below,
followed by the relevant procedural history. A fuller account of the history is set out in the prior
district court opinion, Humane Soc’y I, 474 F. Supp. 3d at 324–26, and need not be repeated here
in resolving the instant dispute regarding the appropriate remedy.
A. The Practice of Horse Soring
Gaited horse breeds exemplified by the Tennessee Walking Horse have long been
admired for their “elegant, high-stepping strut that comes from both careful breeding and patient
training.” Tennessee Walking Horse Nat’l Celebration Ass’n’s Combined Mem. Opp. Pls.’ Mot.
Entry of J. & Supp. Remand Without Vacatur (“Horse Ass’n’s Opp’n”) at 8, ECF No. 46-1. 3
Each year, generally between March and November, the horses compete in a series of shows and
3
The memoranda filed in support of many of these motions are docketed twice and, to simplify citation, only
one of the duplicate memoranda is cited. For example, defendants’ Memorandum in Support of Defendants’
Combined Motion for Remand Without Vacatur and Opposition to Plaintiffs’ Motion for Entry of Judgment is
docketed twice, once at ECF No. 44 and once at ECF No. 45; only to the memorandum docketed at ECF No. 45 is
cited. Proposed intervenor-defendant Tennessee Walking Horse National Celebration Association filed its
Combined Memorandum in Opposition to Plaintiffs’ Motion for Entry of Judgment and in Support of Remand
Without Vacatur twice, at ECF No. 46 and ECF No. 47, and only the memorandum docketed at ECF No. 46 is cited.
Plaintiffs filed their Combined Reply in Support of Plaintiffs’ Motion for Entry of Judgment and Opposition to
Defendants’ Motion for Remand Without Vacatur three times, with duplicates at ECF No. 51 and ECF No. 52, and a
corrected version at ECF No. 53-1; only the memorandum docketed at ECF No. 53-1 is cited.
3
exhibitions that showcase the horses’ distinctive walk. Id. The largest of these events for
Tennessee Walking Horses is the National Celebration, an eleven-day event drawing more than
100,000 spectators to Shelbyville, Tennessee each year, where the “World Grand Champion” is
crowned. Id. In preparation for these events, horses entered in the more dramatic “performance
category” have typically trained with—and perform wearing—weights of six ounces or less on
their legs, called action devices, and pads between their hooves and shoes. Id. at 9.
The distinctive gait of the Tennessee Walking Horse and certain other show horses that is
prized in the show rings can be developed through time-and-labor-intensive training, but—as
abusive trainers have discovered—the sought-after gait may more expediently be created by
inflicting severe pain on the horse’s feet or legs, a practice euphemistically called “soring.” See
id. at 8–9. This method typically involves the application of a blistering agent, such as mustard
oil, to the horse’s legs, which are then wrapped with so-called “action devices,” such as chains,
beads, or metal rollers, to aggravate further the pain during the horse’s performance and causing
the horse so subjected to these techniques to avoid placing weight on the injured legs. See
Compl. ¶¶ 49, 71; H.R. Rep. No. 91-1597, at 2 (1970). The effect is to exaggerate the high-
stepping gait cultivated among these show horses. The pads that horses are often trained with
can also be used for soring; for example, abusive trainers use the pads to hide items, such as bolts
and other hard objects, that apply painful pressure to the soles of the horses’ hooves, resulting in
the same effect of pain-optimized performance, see Compl. ¶ 71; see also Horse Protection;
Licensing of Designated Qualified Persons and Other Amendments, 81 Fed. Reg. 49,112, 49,120
(proposed July 26, 2016) (to be codified at 9 C.F.R. pt. 11). Soring “can make a mediocre horse
perform like a champion,” but this abuse comes at the cost of the horses’ well-being, as well as
fair competition in the gaited horse show industry. H.R. Rep. 91-1597.
4
B. Regulatory Background
Over fifty years ago, in 1970, Congress launched the federal government’s campaign to
end the practice of horse soring with the passage of the Horse Protection Act. The Act
prohibited the showing or exhibition of sored horses, and defined soring as causing pain or
inflammation to horses in order to affect their natural gaits by methods including the use of
blistering or chemical agents, infliction of burns or lacerations, and “any other cruel or inhumane
method or device.” Horse Protection Act of 1970, Pub. L. No. 91-540, at § 2(a)(1)–(4), 84 Stat.
1404 (1970). The Act also authorized USDA to conduct inspections to prevent soring, but due to
its minimal resources and lax enforcement methods, USDA’s inability to make a dent on the
industry’s pervasive soring practices quickly become apparent. In hearings before Congress in
1975, USDA estimated that it would only be able to inspect 20 out of the 3,600 horse shows
scheduled for the 1976 fiscal year—reaching only the “tip of the iceberg” of soring violations.
H.R. Rep. No. 94-1174, at 5–6 (1976).
In response, Congress amended the Horse Protection Act in 1976, empowering USDA to
create the private enforcement scheme that presently remains in practice. See Horse Protection
Act Amendments of 1976, Pub. L. No. 94-360, 90 Stat. 915 (1976). The regulations
promulgated pursuant to the 1976 amendments set out a system by which the horse industry
would regulate itself, appointing so-called horse industry organizations that sponsor horse shows
to train and license “Designated Qualified Persons” (“DQPs”), who may be veterinarians or any
“knowledgeable horsemen.” Definition of Terms and Certification and Licensing of Designated
Qualified Persons, 44 Fed. Reg. 1558 (1979); accord Certification and Licensing of Designated
Qualified Persons (DQP’s), 9 C.F.R. § 11.7(a)(1)–(2), (b) (2022). DQPs are tasked with
inspecting horses for evidence of soring at horse shows and sales, disqualifying sored horses and
issuing violations to the owners. See 9 C.F.R. § 11.7; Responsibilities and Liabilities of
5
Management, 9 C.F.R. § 11.20 (2022). USDA’s involvement in this otherwise-self-policing
system is to certify training programs and to send its own veterinarians on unannounced trips to
evaluate DQPs’ performance. 9 C.F.R. § 11.7. Otherwise, the horse industry organizations are
in charge and responsible for licensing, training, and hiring the DQPs, as well as overseeing the
internal penalty schemes and appeal procedures for violations. Id.; see also U.S. Department of
Agriculture Office of the Inspector General, Audit Report 33601-2-KC, Animal and Plant Health
Inspection Service Administration of the Horse Protection Program and the Slaughter Horse
Transport Program at 1–2 (Sept. 2010).
The self-regulating regime was apparently overly optimistic that the horse show industry
could or would effectively protect horses from troubling and unfair soring practices. In a 2010
report, USDA’s Office of the Inspector General (“USDA-OIG”) concluded that the self-
regulating regime had failed to achieve its intended purpose and recommended that the Animal
and Plant Health Inspection Service (APHIS) of USDA abolish the program. Id. at 3. The
system was determined to be hamstrung by conflicts of interest: the DQPs are often horse
exhibitors themselves, who are motivated to turn a blind eye to violations by their peers—
particularly when their employers, the horse show management, would prefer not to disqualify
horses. Id. at 2. When inspectors did examine the horses effectively enough to find violations,
some deliberately issued violation tickets to people other than the horses’ exhibitors to protect
the exhibitors from incurring a penalty. Id. From 2005 to 2008, although APHIS veterinarians
were present at only 6 percent of shows, those were the shows that accounted for 49 percent of
all violations issued by DQPs, id., strongly suggesting that the self-regulatory scheme worked
most effectively when agency inspectors were present.
6
The 2017 Anti-Soring Enforcement Rule originated as a belated response to the USDA-
OIG report demonstrating the failings within the horse show industry to police itself. This Rule
displaces the self-policing model with a centralized enforcement approach, assigning the
authority to license, train and monitor veterinarians and veterinary technicians as independent
DQPs—to be known instead as “Horse Protection Inspectors” (“HPIs”)—to APHIS alone. See
generally 2017 Anti-Soring Enforcement Rule, ECF No. 1-2. The Rule also takes the significant
step of prohibiting all action devices and non-therapeutic pads. After five public hearings, an
extension of the rule’s comment period, and more than 130,000 written comments, USDA posted
the final rule on its website and transmitted the rule to the Office of the Federal Register, which
made it available for public inspection on January 19, 2017, and scheduled publication of the
rule in the Federal Register for January 24, 2017. Humane Soc’y II, 41 F.4th at 566–67.
The 2017 Anti-Soring Enforcement Rule, however, was never published in the Federal
Register. On Inauguration Day, January 20, 2017, the Chief of Staff to new President Donald
Trump issued a memorandum directing all agencies to withdraw any rule provided to the Office
of the Federal Register not yet published in the Federal Register. As a result, the day before the
2017 Anti-Soring Enforcement Rule was set to be published, USDA asked the Office of the
Federal Register to withdraw this rule from the public docket and withhold publication. See
Compl. ¶¶ 95–96; Repeal Action. The 2017 Anti-Soring Enforcement Rule proceeded to whither
on the vine: USDA added the rule to a list of “inactive” rulemakings, Humane Soc’y I, 474 F.
Supp. 3d at 326, and in December 2021, after the district court had dismissed this suit, USDA
published in the Federal Register a withdrawal of the 2016 Notice of Proposed Rulemaking,
citing the need to update the 2017 Anti-Soring Enforcement Rule based on findings regarding
horse soring identification techniques published in a 2021 National Academy of Sciences study.
7
Defs.’ Mem. Supp. Cross-Mot. Remand Without Vacatur & Opp’n to Pls.’ Mot. Entry of J.
(“Defs.’ Opp’n”) at 10, ECF No. 45 (citing Horse Protection; Licensing of Designated Qualified
Persons and Other Amendments, 86 Fed. Reg. 70,755 (Dec. 13, 2021)). 4
Over six years have now passed since the 2017 Anti-Soring Enforcement Rule was
unlawfully withdrawn in 2017, with the horse show industry’s self-policing regime continuing
intact over a decade after the revelations in the USDA-OIG report about the inherent
inadequacies of that system. In the interim, USDA has created a new Notice of Proposed
Rulemaking to address horse soring, which is currently undergoing review by the Office of
Information and Regulatory Affairs (“OIRA”). See Defs.’ Opp’n at 11.
4
The National Academy of Sciences study, titled A Review of Methods for Detecting Soreness in Horses,
made a series of findings that bear directly on USDA’s regulations enforcing the Horse Protection Act. See National
Academy of Sciences, A Review of Methods for Detecting Soreness in Horses (2021) (“NAS Report”),
https://nap.nationalacademies.org/catalog/25949/a-review-of-methods-for-detecting-soreness-in-horses. First, the
report “strongly recommend[ed] that use of DQPs for inspections be discontinued and that only veterinarians,
preferably with equine experience, be allowed to examine horses,” NAS Report at 42. The report further urged that
any third-party inspectors be trained by USDA, rather than the industry, and screened for conflicts of interest—a
recommendation “in line with the rule proposed by APHIS in 2016 that was finalized in 2017 but not yet
implemented.” Id. In addition, the report made a number of recommendations regarding techniques to detect pain
in horses, such as updating training regarding equine pain behavior and reinstituting the use of thermography to
detect soring, see id. at 43, 70.
Among its recommendations, the report dedicated a chapter to explaining the need for revision of what is
called the “Scar Rule” in the Horse Protection Act regulations. The Scar Rule, originally added in 1979 and not
revised since then, presumes a horse to be sored if an inspector observes abnormalities in the horse’s leg tissue,
namely, “bilateral granulomas,” or other evidence of inflammation. Scar Rule, 9 C.F.R. § 11.3 (2022). According
to the report, the Scar Rule’s language is so outdated and lacking in clear terms as to be “not enforceable.” NAS
Report at 83. The rule was designed to permit inspectors to identify visually lesions on horses’ legs that indicate
soring, but the report found no evidence that granulomas in particular are present in the lesions of sore horses—nor
even that inspectors can detect such granulomas with the naked eye. Id. Even the name of the rule is no longer
appropriate, because sored horses’ lesions have become more subtle in the intervening decades since 1979, resulting
in lesions that still violate the scar rule without evidencing any scars. Id. at 83–84. Consequently, the report
recommends a wholesale revision of the Scar Rule. The 2017 Anti-Soring Enforcement Rule made no changes to
the long-standing Scar Rule; nonetheless, USDA’s 2021 withdrawal notice noted the NAS Report’s findings
regarding the Scar Rule—among other “science-based recommendations regarding revisions to APHIS’ Horse
Protection Act program”—to conclude that the 2017 Anti-Soring Enforcement Rule did not adequately address the
NAS Report’s findings. See Horse Protection; Licensing of Designated Qualified Persons and Other Amendments,
86 Fed. Reg. 70,755 (Dec. 13, 2021) (withdrawing 2016 Notice of Proposed Rulemaking).
8
C. Procedural Background
On August 13, 2019, plaintiffs filed this lawsuit to challenge USDA’s withdrawal of the
2017 Anti-Soring Enforcement Rule, alleging that this Rule “could not be repealed without
public notice first proposing such repeal, explaining the rationale for it and providing the
opportunity for public comment.” Compl. at 3. The district court granted the defendants’
motion to dismiss, holding that the 2017 Anti-Soring Enforcement Rule was not a final rule and
could be withdrawn without undergoing a formal repeal process. Humane Soc’y I, 474 F. Supp.
3d 320. On July 22, 2022, the D.C. Circuit reversed the lower court’s ruling, holding that a rule
“passes [a] regulatory point of no return” when it is made available for public inspection, as
occurred with the 2017 Anti-Soring Enforcement Rule. Humane Soc’y II, 41 F.4th at 568–570.
Consequently, “agencies may repeal a rule made available for public inspection in the Office of
the Federal Register only after complying with the APA’s procedural requirements,” a
requirement that USDA failed to satisfy “when it withdrew its final rule without providing notice
and an opportunity for comment or invoking a statutory exemption.” Id. at 575. In dissent,
Judge Rao expressed consternation about the appropriate remedy, noting that most of the rule
had an effective date of January 1, 2018. See id. at 584 (Rao, J., dissenting) (“If USDA
unlawfully withdrew its horse soring rule in 2017, what happens next? Does the district court
have authority to compel USDA to resubmit its 2017 rule to the Federal Register? . . . If the 2017
rule is published, may USDA enforce the rule against private parties stretching back to the
original effective date?”). The majority, in response, urged that Judge Rao’s “hand-wringing
about the remedy in this case has a simple answer: the case is like any other in which an agency
repeals a rule without notice and comment and a court holds that it was wrong to do so,” citing
Env’t Def. Fund, Inc. v. Gorsuch, 713 F.2d 802, 818 (D.C. Cir. 1983), which held that a rule’s
failure to be subject to notice and comment resulted in its vacatur. 41 F.4th at 575.
9
USDA then filed a petition for panel rehearing, which was denied on December 5, 2022.
Humane Soc’y of the United States v. USDA (“Humane Soc’y III”), 54 F.4th 733 (Mem.) (D.C.
Cir. 2022). The agency petition requested that the panel “delete” the passage regarding the
appropriate remedy in this case and instead “indicate that it expresses no view about the
appropriate remedy,” arguing that remand without vacatur is appropriate. See Pet. for Panel
Rehr’g at 2, Humane Soc’y of the United States v. USDA, Case No. 20-5291 (D.C. Cir. Oct. 6,
2022). In denying the petition, the D.C. Circuit ordered that “[o]n remand, the district court may
consider all remedial issues, including the question of whether remand to the agency without
vacatur is appropriate under the criteria established by Circuit precedent.” 54 F.4th at 734. In
concurrence, Judges Tatel and Millett noted that USDA’s “modest request makes sense given
that the Department is in the late stages of developing a rule addressing the same topic as the
2017 rule, a fact the district court can consider when determining the proper remedy.” Humane
Soc’y III, 54 F.4th at 734. 5
Upon issuance of the D.C. Circuit’s mandate, the Tennessee Walking Horse National
Celebration Association—the convening organization of the annual Tennessee Walking Horse
National Celebration—filed a motion to intervene on remand before this Court, ECF No. 33,
which plaintiffs opposed, ECF No. 41, and upon which the agency defendants took no position,
ECF No. 40. Later, the Association filed an unopposed, conditional motion to file a brief as
amicus curiae if its motion to intervene were denied, ECF No. 48. Plaintiffs then filed a motion
seeking remand with vacatur of the unlawful Repeal Action withdrawing the 2017 Anti-Soring
5
The same order denied the Tennessee Walking Horse National Celebration Association’s motion to
intervene, over Judge Rao’s dissent, with the concurrence concluding that the Association’s motion came too late.
54 F.4th at 734. Emphasizing that the D.C. Circuit only grants motions to intervene at the appeal stage in
“exceptional case[s] for imperative reasons,” id. at 735 (Tatel, J., concurring) (quoting Amalgamated Transit Union
Int’l, AFL-CIO v. Donovan, 771 F.2d 1551, 1552 (D.C. Cir. 1985) (per curiam)), the concurrence noted that the
Association has “long been on notice that its interests were not the same as the Department’s . . . [and] [i]t is not for
the Association to now second guess the Department’s strategy by intervening,” id.
10
Enforcement Rule, ECF No. 42. In response, defendants filed a combined motion for remand,
without vacatur of the withdrawal, and opposition to plaintiffs’ motion, ECF No. 45, and the
Association filed its own cross-motion for remand without vacatur, ECF No. 46. All five
motions are now ripe.
II. LEGAL STANDARD
A. Intervention
Federal Rule of Civil Procedure 24 provides that “[o]n timely motion,” the Court “must
permit anyone to intervene who . . . claims an interest relating to the property or transaction that
is the subject of the action, and is so situated that disposing of the action may as a practical
matter impair or impede the movant’s ability to protect its interest, unless existing parties
adequately represent that interest.” FED. R. CIV. P. 24(a)(2). To qualify for intervention as of
right, four requirements must be satisfied: “1) timeliness of the application to intervene; 2) a
legally protected interest; 3) that the action, as a practical matter, impairs or impedes that
interest; and 4) that no party to the action can adequately represent the potential intervenor’s
interest.” Crossroads Grassroots Pol’y Strategies v. Fed. Election Comm’n, 788 F.3d 312, 320
(D.C. Cir. 2015); see also Karsner v. Lothian, 532 F.3d 876, 885 (D.C. Cir. 2008). A movant
failing to meet the requirements to intervene as a matter of right may nonetheless be allowed
permissive intervention, pursuant to Rule 24(b), if the movant “[o]n timely motion . . . has a
claim or defense that shares with the main action a common question of law or fact.” FED. R.
CIV. P. 24(b)(1)(B). 6
6
“The standing inquiry for an intervening-defendant [by right] is the same as for a plaintiff: the intervenor
must show injury in fact, causation, and redressability.” Crossroads Grassroots Policy Strategies, 788 F.3d at 316.
While it remains “an open question in this [C]ircuit whether Article III standing is required for permissive
intervention,” Defs of Wildlife v. Perciasepe, 714 F.3d 1317, 1327 (D.C. Cir. 2013), plaintiffs do not contest the
Association’s standing in this case, see generally Pls.’ Opp’n Tennessee Walking Horse Nat’l Celebration Ass’n’s
Mot. Intervene (“Pls.’ Opp’n Horse Ass’n’s Mot. Intervene”), ECF No. 41. Indeed, the Association’s standing is
evidenced by this organization’s status as an entity regulated by USDA’s enforcement of the Horse Protection Act.
11
B. Remand With or Without Vacatur
Upon reaching the conclusion that agency actions are unlawful and void, vacatur is the
“normal remedy,” Allina Health Servs. v. Sebelius, 746 F.3d 1102, 1110 (D.C. Cir. 2014), and
the “ordinary result” is that the actions are set aside in full, Nat’l Mining Ass’n v. U.S. Army
Corps of Eng’rs, 145 F.3d 1399, 1409 (D.C. Cir. 1998) (quoting Harmon v. Thornburgh, 878
F.2d 484, 495 n.21 (D.C. Cir. 1989)). “[I]n limited circumstances,” however, courts have
discretion to “remand without vacating the agency’s action,” Am. Great Lakes Ports Ass’n v.
Schultz, 962 F.3d 510, 518 (D.C. Cir. 2020)—a remedial technique pioneered by the D.C. Circuit
and recently described as “a useful arrow in a court’s remedial quiver,” Am. Public Gas Ass’n v.
U.S. Dep’t Energy, 22 F.4th 1018, 1030 (D.C. Cir. 2022). Whether remand without vacatur is
appropriate is guided by consideration of the so-called Allied-Signal factors: first, of “‘the
seriousness of the action’s deficiencies’ and, second, the ‘likely disruptive consequences of
vacatur.’” Am. Great Lakes Ports Ass’n, 962 F.3d at 518 (quoting Allina Health, 746 F.3d at
1110) (cleaned up); accord Allied-Signal, Inc. v. U.S. Nuclear Regul. Comm’n, 988 F.2d 146,
150–51 (D.C. Cir. 1993) (formalizing the practice of remanding without vacatur in this Circuit).
III. DISCUSSION
The Association’s motion to intervene is addressed first, followed by discussion of the
appropriate remedy in this case.
Plus, the Association has represented that the immediate enforcement of the 2017 Anti-Soring Enforcement Rule
would “effectively make it impossible to stage” the organization’s annual National Celebration. Horse Ass’n’s Mot.
Intervene at 14. According to the Association, vacatur of the Repeal Action would cause those injuries, and
remanding without vacatur would prevent them. Id. at 16–17.
12
A. Intervention by the Tennessee Walking Horse National Celebration
Association
The Association has moved to intervene as of right under Federal Rule of Civil Procedure
24(a), seeking to participate “for the limited purpose of addressing the appropriate remedy in this
new phase of the case and not to reopen any previously litigated issues.” Horse Ass’n’s Mot.
Intervene at 17. As already noted, defendants take no position on the Association’s intervention,
see Defs.’ Resp. Horse Ass’n’s Mot. Intervene, ECF No. 40, but plaintiffs oppose on grounds
that the motion is untimely and, in any case, USDA adequately represents the organization’s
interests in this limited proceeding. Pls.’ Opp’n Tennessee Walking Horse Nat’l Celebration
Ass’n’s Mot. Intervene (“Pls.’ Opp’n Horse Ass’n’s Mot. Intervene”), ECF No. 41. The
Association has the better of this argument and shall be permitted to intervene in the case. The
two disputed prongs of the intervention-by-right analysis are addressed in turn. 7
1. Timeliness
Timeliness “is to be judged in consideration of all the circumstances, especially weighing
the factors of time elapsed since the inception of the suit, the purpose for which intervention is
sought, the need for intervention as a means of preserving the applicant’s rights, and the
probability of prejudice to those already parties in the case.” Amador Cnty. v. U.S. Dep’t of
Interior, 772 F.3d 901, 903 (D.C. Cir. 2014) (citations omitted). Courts “do not require
timeliness for its own sake.” Roane v. Leonhart, 741 F.3d 147, 151 (D.C. Cir. 2014). Rather,
the timeliness factor is “aimed primarily at preventing potential intervenors from unduly
disrupting litigation, to the unfair detriment of the existing parties.” Id. The “most important
7
The second and third factors of the analysis—that the Association has a legally protected interest and the
action threatens to impair that interest—support the Association’s intervention, as plaintiffs implicitly concede, see
Pls.’ Opp’n Horse Ass’n’s Mot. Intervene at 15–23, and for the same reasons that confer standing upon the entity in
this case, see supra n.6.
13
consideration,” then, is whether any delay in intervention unfairly prejudices the existing parties.
Id at 152. 8
Undoubtedly, the Association could have sought to intervene in the original district court
proceedings in this case. Plaintiffs have sought vacatur of the Repeal Action from the very first
filing in this lawsuit in 2019, ringing the bell of the Association’s core interests. See Compl. at
44–45 (requesting that the Court enter judgment “[v]acating USDA’s repeal of the Final Rule”);
Pls.’ Opp’n Horse Ass’n’s Mot. Intervene at 17–18. USDA did not clearly represent the
Association’s interests at the outset of the litigation—a fact only underlined by the Association’s
failed attempt to intervene to seek en banc review of the D.C. Circuit’s ruling when USDA
declined to do so. See Humane Soc’y III, 54 F.4th at 734; see also id. at 735 (Tatel, J.
concurring) (noting that the “Association has long been on notice that its interests were not the
same as the Department’s, a government agency bound to represent the ‘interests of the
American people’” (quoting Fund for Animals v. Norton, 322 F.3d 728, 736 (D.C. Cir. 2003))).
Even where a would-be intervenor “could have intervened earlier,” however, it does not
necessarily follow that it “should have intervened earlier.” Roane, 741 F.3d at 152.
8
Plaintiffs urge that “the most important circumstance relating to timeliness” is in fact whether the proposed
intervenor “sought to intervene as soon as it became clear that [the proposed intervenor’s] interests would no longer
be protected by the parties in the case,” Pls.’ Opp’n Horse Ass’n’s Mot. Intervene (quoting Cameron v. EMW
Women’s Surgical Ctr., 142 S. Ct. 1002, 1012 (2022) (cleaned up)). This partial quote from Cameron in no way
abrogates D.C. Circuit precedent’s focus on unfair prejudice as the key inquiry. In Cameron, the Supreme Court
granted the Kentucky Attorney General’s motion to intervene, when the motion was filed only two days after the
state’s cabinet secretary of Health and Family Services declined to continue defending the state’s law concerning
abortion procedures. Since “the timeliness of [the Attorney General’s] motion should be assessed in relation to that
point in time,” the motion to intervene was found not to be untimely. 142 S. Ct. at 1012–13. The import of this
finding is that filing a motion to intervene as soon as an intervenor realizes its interests are not adequately protected
may be sufficient to meet the timeliness requirement—but this is neither the sole nor necessary measure of
timeliness. Here, the Association does not even argue about whether its intervention motion was filed at the earliest
possible moment; rather, its argument hinges on whether any delay in intervening would cause unfair prejudice to
the existing parties.
14
The critical consideration—unfair prejudice—weighs decisively in favor of the
Association’s motion. After the D.C. Circuit issued its mandate, the Association filed its
intervention motion even before the parties began briefing the remedial issue, and it has
complied with the court-ordered briefing schedule by submitting a proposed cross-motion and
reply brief alongside defendants. This posture distinguishes the Association’s motion to
intervene from cases cited by plaintiffs, such as Amalgamated Transit Union Int’l, AFL-CIO v.
Donovan, where a proposed-intervenor’s motion to intervene to seek further review of an
appellate decision was filed nearly two months after the decision’s issuance, and thus would
have “denied [the existing parties] any meaningful opportunity to respond to any new
arguments.” 771 F.2d 1551, 1553 (D.C. Cir. 1985). Consideration of the Association’s briefs
would add no additional time to resolution of this proceeding. Further, the Association expressly
denied any intent to “relitigate any matters that have already been decided,” but seeks only to
address the matter of remedies. Horse Ass’n’s Mot. Intervene at 18. Such express disclaimers
have effectively mitigated concerns about prejudice to parties from permitting intervention after
substantial litigation on the merits was already underway. See, e.g., Hodgson v. United Mine
Workers of America, 473 F.2d 118, 129 (D.C. Cir. 1972) (granting union members’ motion to
intervene after trial, where “the proposed intervenors expressly disavowed any desire to reopen
any previously-litigated question, and sought only to participate in the remedial, and if necessary
the appellate, phases of the case”); Natural Resources Def. Council v. Costle, 561 F.2d 904, 908
(D.C. Cir. 1977) (granting intervention at remedial stage where proposed intervenors “did not
seek to reopen the settled issues in the case but sought to participate in an upcoming, remedial
phase of the litigation”); cf. Campaign Legal Ctr. v. Fed. Election Comm’n, Case No. 21-cv-406
(TJK), 2022 WL 1978727, *3 (D.D.C. June 6, 2022) (denying motion to intervene seeking to
15
reopen settled issues in the case, and noting that when “purpose of [intervention] is more
‘limited’ or forward looking,” courts are more likely to grant the motion (quoting United States
v. Am. Tel. & Tel. Co., 642 F.2d 1285, 1294 (D.C. Cir. 1980))). As a result, the existing parties
will not be unfairly prejudiced by any delay in resolution as a result of the Association’s
participation.
Plaintiffs’ attempt to identify prejudice in the nature of the Association’s arguments,
which they claim “convert this narrow remedial litigation into a full-scale attack on the validity
of the Final Rule,” Pls.’ Opp’n Horse Ass’n’s Mot. Intervene at 18, is overblown. To be sure,
the Association contends that the 2017 Anti-Soring Enforcement Rule is defective, see Horse
Ass’n’s Mot. Intervene at 25, but the points raised in this argument are also relevant to the
Allied-Signal analysis’s second factor regarding the disruptive effects of vacatur. To the extent
that the 2017 Anti-Soring Enforcement Rule is now outdated, as USDA also notes, see Defs.’
Opp’n at 10–11, this threatens to make vacatur of the Repeal Action more disruptive due to the
likelihood that, if permitted to spring into effect, the former rule would be quickly stayed or
altered, whether via litigation or agency action. Although the same arguments might be levied in
an action claiming the 2017 Anti-Soring Enforcement Rule is arbitrary and capricious, the
versatility of the Association’s critiques does not somehow transform the nature of this remedial
phase of this case.
Finally, contrary to plaintiff’s contentions, the “law of the case” does not dictate that the
Association’s motion is untimely. Pls.’ Opp’n Mot. Intervene at 12. The D.C. Circuit denied the
Association’s first motion to intervene in a distinct context, applying the “appellate stage”
standard of only granting motions to intervene in “exceptional case[s] for imperative reasons,”
Humane Soc’y III, 54 F.4th at 735 (Tatel, J., concurring) (quoting Amalgamated Transit Union
16
Int’l, AFL-CIO, 771 F.2d at 1552). That standard is not applicable here. Further, the timeliness
analysis includes consideration of “the purpose for which intervention is sought” and “the
probability of prejudice,” Amador Cnty., 772 F.3d at 903—two factors that look starkly different
at this remedial stage. In contrast to the Association’s prior purpose of “second guess[ing]”
defendants’ strategy by seeking further review, Humane Soc’y III, 54 F.4th at 735, the
Association now seeks to participate in an entirely new stage of this litigation. While the
Association’s entry at the appeal stage would have delayed this litigation as this intervenor
sought en banc review, entry as an intervenor at this stage does not threaten to prejudice the
parties unfairly. The panel’s decision to exclude the Association from joining this litigation at
the appellate stage does not control the pending motion to intervene in this remedial proceeding.
Accordingly, the Association’s motion is sufficiently timely.
2. Adequacy of Representation
A potential intervenor need only show that “representation of his interest may be
inadequate; and the burden of making that showing should be treated as minimal.” Fund for
Animals, 322 F.3d at 735 (quoting Trbovich v. United Mine Workers, 404 U.S. 528, 538 n.10
(1972)). This requirement is “not onerous.” Crossroads Grassroots Pol’y Strategies, 788 F.3d at
321 (quoting Fund for Animals, 322 F.3d at 735); accord Berger v. North Carolina State
Conference of NAACP, 142 S. Ct. 2191, 2203–04 (2022). In addition, the D.C. Circuit has
traditionally “look[ed] skeptically on government entities serving as adequate advocates for
private parties.” Crossroads Grassroots Pol’y Strategies, 788 F.3d at 321.
The Association has surmounted its low burden of demonstrating that USDA may not
adequately protect its interests. True, in the context of this narrow remedial phase, the
Association and USDA propose exactly the same remedy—remand of the Repeal Action without
17
vacatur—and for the same reasons: first, the potentially disruptive consequences of vacatur, and
second, USDA’s progress in promulgating an updated rule based on recent scientific
advancements, including the findings of the 2021 National Academy of Sciences study that were
not available at the time of the 2017 Anti-Soring Enforcement Rule’s drafting. See Defs.’ Opp’n
at 13–19; Horse Ass’n’s Mot. Intervene at 23–26. Still, USDA is not able to “afford the
movant’s discrete and particularized interests the same primacy as movants would themselves,”
Navistar, Inc. v. Jackson, 840 F. Supp. 2d 357, 362 (D.D.C. 2012) (citations and quotations
omitted), given that the best providers of information regarding the effect of the snap-
enforcement of the 2017 Anti-Soring Enforcement Rule are the regulated entities themselves,
including the Association. 9 Further, “[a]lthough the intervenor and the government entity
involved in the litigation frequently may agree on a legal position or course of action, the D.C.
Circuit nonetheless ‘often [has] concluded that governmental entities do not adequately represent
the interests of aspiring intervenors.’” 100Reporters LLC v. U.S. Dep’t of Justice, 307 F.R.D.
269, 279 (Contreras, J.) (D.D.C. Dec. 3, 2014) (quoting Fund for Animals, 322 F.3d at 736).
This is because the entities’ interests could always diverge later on in the course of the litigation;
after all, as a general matter, the interests of USDA and the Association, which is regulated by
the former, obviously diverge. USDA represents the public; in contrast, the Association
represents its members, who face significant financial stakes in the outcome of this litigation, and
9
Defendants’ briefs on the question of remedy lay bare USDA’s limited capacity to represent the
Association’s interests at stake. In portraying the potentially disruptive consequences of vacatur, USDA focuses on
the potential regulatory confusion, harm to horses of having their high pads removed suddenly, the difficulties that
USDA would face in training new inspectors quickly, and the drain on USDA’s resources of enforcing the 2017
Anti-Soring Enforcement Rule while simultaneously focusing on promulgating an updated rule. Defs.’ Opp’n at
13–19. Nowhere do defendants detail the immediate adverse impact that vacatur would have on regulated entities
like the Association, such as the elimination of an estimated 70 percent of the horses shown at the Association’s
National Celebration, and the 2017 Anti-Soring Enforcement Rule’s rendering of the Association’s subsidiary Horse
Industry Organization practically defunct overnight, see Horse Ass’n’s Mot. Intervene at 14–15.
18
even “the extinction of the sport” of showcasing Tennessee Walking Horses, Horse Ass’n’s Mot.
Intervene at 24. See Humane Soc’y III, 54 F.4th at 735 (Tatel, J., concurring) (noting that “[i]n
representing the public, [USDA] may favor different arguments than a private third party”).
Here, those fundamentally distinct interests may result in USDA and the Association taking
different views as to whether and how to appeal this Court’s ruling—the exact crack in interests
that already appeared on appeal. Thus, the last of the Rule 24(a)(2) requirements is satisfied,
because defendants may not adequately represent the Association’s interests at this stage of the
litigation.
Accordingly, the Association may intervene “for the limited purpose of addressing issues
related to remedy.” Horse Ass’n’s Mot. Intervene at 18. 10
B. Vacatur of the 2017 Rule’s Withdrawal
The parties agree that the Allied-Signal factors control the analysis of whether remand
with or without vacatur is the appropriate remedy in light of the D.C. Circuit’s ruling that the
2017 Anti-Soring Enforcement Rule was unlawfully withdrawn. See Pls.’ Mem. Supp. Mot.
Entry J. (“Pls.’ Mem.”), ECF No. 42 at 17–18; Defs.’ Opp’n at 12–13; Horse Ass’n’s Opp’n at
6–7. Plaintiffs assert that the Repeal Action withdrawing this rule must be vacated, because the
repeal’s failure to go through notice-and-comment was a “fundamental flaw,” and vacatur would
be unlikely to cause sufficiently “disruptive consequences.” Pls.’ Mem. at 10, 18–24. In
contrast, defendants and the Association argue that remand without vacatur is appropriate under
the same factors, emphasizing the “novel disruptive consequences” that would result from the
2017 Anti-Soring Enforcement Rule’s sudden resurrection. Defs.’ Opp’n at 13. From
10
Consequently, the Association’s alternative arguments for permissive intervention, pursuant to Fed. R. Civ.
P. 24(b)(1)(B), Horse Ass’n’s Mot. Intervene at 26–27, or for the Association to be permitted to participate as
amicus curiae, see Tennessee Walking Horse Nat’l Celebration Ass’n’s Conditional, Unopposed Mot. File as
Amicus Curiae, ECF No. 48, need not be addressed and may be denied as moot.
19
defendants’ and the defendant-intervenor’s perspective, the immediate enforcement of this Rule
would likely shutter this year’s show season and harm horses accustomed to the currently-legal
devices—all for the temporary enforcement of a rule that USDA acknowledges has fallen behind
scientific developments in detecting horse soring, and which the agency is already working to
update with new rulemaking. Defs.’ Opp’n at 13–20; Horse Ass’n’s Opp’n at 6–7.
1. The Severity of the Withdrawal’s Deficiencies
The first Allied-Signal factor weighs in favor of vacatur due to the severity of the Repeal
Action’s deficiencies. Generally, when an agency’s reasoning is found to be legally deficient,
but there is “at least a serious possibility that the [agency] will be able to substantiate its decision
on remand,” vacatur is not necessary. Allied-Signal, 988 F.2d at 151. In those instances, the fix
may be a simple matter of adding additional explanations for its decision, see, e.g., Heartland
Regional Med. Ctr. v. Sebelius, 566 F.3d 193, 198 (D.C. Cir. 2009), or correcting a citation that
erroneously rooted the agency’s authority in an expired statute, see Air Transport Ass’n of
America, Inc. v. U.S. Dep’t of Agriculture, 317 F. Supp. 3d 385, 391–92 (D.D.C. 2018). Such
substantive errors do not necessarily give rise to “doubt whether the agency chose correctly,”
Allied-Signal, 988 F.2d at 150. See also Am. Public Gas Ass’n, 22 F.4th at 1031 (describing a
“failure[] to explain” as “the type of deficiency most readily remedied on remand”).
Procedural deficiencies in the rule-making process, however, are categorically different.
“[F]ailure to provide the required notice and to invite public comment—in contrast to the
agency’s failure . . . adequately to explain why it chose one approach rather than another for one
aspect of an otherwise permissible rule—is a fundamental flaw that normally requires vacatur of
the rule.” Natural Resources Def. Council v. Wheeler, 955 F.3d 68, 85 (D.C. Cir. 2020) (quoting
Heartland Regional Med. Ctr., 566 F.3d at 199). See also Allina Health, 746 F.3d 1110–1111
20
(describing deficient notice as “almost always” requiring vacatur). An agency’s failure to abide
by notice-and-comment procedures is so severe because this flaw in the decision-making process
creates a baked-in deficiency of information and democratic engagement that cannot be
retroactively ameliorated. Without engaging in notice-and-comment procedures, the agency’s
action “lacks the legitimacy that comes with following the APA-mandated procedures for
creating binding legal obligations.” Shands Jacksonville Med. Ctr. v. Burwell, 139 F. Supp. 3d
240, 268 (D.D.C. 2015) (Moss, J.); see also Pls.’ Mem. at 18–19; Pls.’ Corrected Reply Supp.
Mot. Entry of J. & Opp’n Defs.’ Mot. Remand Without Vacatur (“Pls.’ Opp’n”) at 11 n.1, ECF
No. 53-1. Consequently, “[w]hen an agency bypasses a fundamental procedural step, the vacatur
inquiry asks not whether the ultimate action could be justified, but whether the agency could,
with further explanation, justify its decision to skip that procedural step.” Standing Rock Sioux
Tribe v. U.S. Army Corps of Eng’rs, 985 F.3d 1032, 1052 (D.C. Cir. 2021). 11 Otherwise,
agencies would be incentivized to rule first and seek public comment later, thereby subverting
the democratic and outcome-improving purposes of this procedural step. See AFL-CIO v. Chao,
496 F. Supp. 2d 76, 91 (D.D.C. 2007) (describing procedural requirements such as notice-and-
comment as “serv[ing] the salutary purposes of (1) ‘ensur[ing] that agency regulations are tested
via exposure to diverse public comment, (2) ensur[ing] fairness to affected parties, and (3)
11
For this reason, the Association’s contention that “it is more than merely likely that the USDA will be able
to fix its error on remand and reach the same result” is based on a flawed understanding of this Allied-Signal factor.
Horse Ass’n’s Opp’n at 17–18. The Association argues that, given USDA’s withdrawal of the 2017 Anti-Soring
Enforcement Rule in 2021 based on the agency’s desire to consider updates with new scientific developments,
conducting the required notice-and-comment would surely result in the rule’s withdrawal. As Standing Rock Sioux
Tribe makes clear—a case that, perplexingly, no party has addressed—the proper question for a procedural
deficiency is whether USDA could justify its decision to skip notice-and-comment procedures when withdrawing
the rule. 985 F.3d at 1052. The answer to that question is resounding silence by defendants.
The Association’s approach is fatally flawed, not only for ignoring D.C. Circuit precedent, but also for
rewarding bad behavior. An agency confident that notice-and-comment procedures would eventually favor
withdrawal of a rule—particularly if the lack of notice-and-comment results in remand after litigation, which builds
in time for the rule to grow stale, as was the case here—would have little incentive to comply with procedural
requirements, but instead could withdraw rules without procedural guardrails first, and then, if caught, conduct
notice-and-comment to justify those decisions retroactively after courts remand without vacatur.
21
[giving] affected parties an opportunity to develop evidence in the record to support their
objections to the rule and thereby enhance the quality of judicial review.’” (quoting Int’l Union,
United Mine Workers of America v. Mine Safety and Health Admin., 407 F.3d 1250, 1259
(D.C.Cir.2005))).
USDA’s failure to follow notice-and-comment procedures when withdrawing the 2017
Anti-Soring Enforcement Rule was undoubtedly a serious deficiency, seeding substantial doubt
that the agency “chose correctly” in its action. Allied-Signal, 988 F.2d at 150. Indeed,
defendants never contend that “the agency could, with further explanation, justify its decision to
skip [notice-and-comment],” Standing Rock Sioux Tribe, 985 F.3d at 1052. See generally Defs.’
Opp’n; Defs.’ Reply Supp. Mot. Remand Without Vacatur (“Defs.’ Reply”), ECF No. 57.
Instead, the agency emphasizes the unique posture of this case’s procedural defect. See Defs.’
Opp’n at 18–19. In the majority of cases cited by plaintiffs to support vacatur, agencies failed to
engage in notice-and-comment procedures before promulgating, rather than withdrawing, a rule.
See Pls.’ Mem. at 18–19 (citing cases in which failure to engage in notice-and-comment before
promulgating rule resulted in vacatur). In many of those cases, vacatur would simply result in a
reversion to the regulatory status quo before the rule’s promulgation. Here, because the unlawful
action was a recission, the opposite is true: remand without vacatur maintains the status quo.
This buttresses the agency’s argument that vacatur would be disruptive under the second prong
of the Allied-Signal analysis, but is misplaced in assessing the first prong concerning the
seriousness of the deficiency. Put another way, defendants falter in asserting that merely
maintaining the status quo without vacatur makes the agency’s deficiency in rule-making any
less serious, see Defs.’ Reply at 3–4—a conclusion that simply does not follow.
22
2. Disruptive Consequences
The second Allied-Signal factor requires courts to consider “the disruptive consequences
of an interim change that may itself be changed.” Allied-Signal, 988 F.2d at 150–51 (quoting
Int’l Union, United Mine Workers of America v. Federal Mine Safety & Health Admin., 920 F.2d
960, 967 (D.C. Cir. 1990)). Where courts have found that vacatur would be particularly
disruptive, they have remanded without vacatur even when the deficiency was an omission of
notice and comment. This decision is “based on equitable considerations.” Organic Trade Ass’n
v. U.S. Dep’t of Agriculture, Case No. 17-cv-1875 (PLF), 2022 WL 951335, *8 (D.D.C. March
30, 2022). See also Nat’l Parks Conservation Ass’n v. Semonite, 422 F. Supp. 3d 92, 99 (D.D.C.
2019) (“Neither factor is dispositive, as ‘there is no rule requiring either the proponent or
opponent of vacatur to prevail on both factors.’” (quoting Shands Jacksonville Med. Ctr., 139 F.
Supp. 3d at 270)). In Sugar Cane Growers Co-op of Fla. v. Veneman, for example, the USDA
implemented a program—without notice-and-comment rulemaking—by which sugar beet
farmers could submit bids offering to destroy a certain amount of their crops in exchange for
sugar in USDA storage. In holding that the program was procedurally defective, the D.C. Circuit
emphasized that the program had already been launched, and “the crops were plowed under,”
such that “[t]he egg has been scrambled and there [was] no apparent way to restore the status quo
ante,” 289 F.3d 89, 97–98 (D.C. Cir. 2002). See also Stand Up for California! v. U.S. Dep’t of
Interior, 879 F.3d 1177, 1190–91 (D.C. Cir. 2018) (affirming remand, without vacatur, where
agency failed to give timely, statutorily-required notice, both because of the defect’s “relative
insignificance” and the otherwise likely disruptive consequences); Williams v. Walsh, Case No.
21-cv-1150 (RC), 2022 WL 17904227, at *18 (D.D.C. Dec. 23, 2022) (remanding, without
vacatur, rule promulgated without notice-and-comment due to significant disruptive
23
consequences otherwise); Fertilizer Inst. v. EPA, 935 F.2d 1303, 1312 (D.C. Cir. 1991)
(remanding, without vacatur, where EPA failed to provide adequate notice and comment on the
issue of administrative exemptions to a hazardous waste reporting requirement because the
exemptions’ removal “may affect the EPA’s ability to respond adequately to serious safety
hazards”); Am. Medical Ass’n v. Reno, 57 F.3d 1129, 1135–36 & n.4 (D.C. Cir. 1995)
(remanding, without vacatur, where DEA issued rule increasing registration fees for handlers of
controlled substances without adequate notice-and-comment procedures, given that vacating the
fee rules would cause “obvious hardship” for the DEA, and any improper overcollection could
be easily made up through future adjustment, but urging the DEA to “act with due haste” to
remedy its errors).
Vacatur of the Repeal Action resulting in withdrawal of the 2017 Anti-Soring
Enforcement Rule would be severely disruptive across the board: for the regulated horse show
industry, the horses the Horse Protection Act seeks to safeguard, and the agency. This disruption
does not merely arise because the 2017 Anti-Soring Enforcement Rule is, as USDA intended, a
major overhaul of the regulatory regime. Nearly all aspects of this Rule, as filed for public
inspection, would have gone into effect approximately one year after the rule’s scheduled
publication, on January 1, 2018. See 2017 Anti-Soring Enforcement Rule at 3. Vacating the
withdrawal now, more than five years after the Rule’s date of effectiveness, would cause its
immediate resurrection and “would instantly put the entire industry out of compliance and make
it impossible even to conduct the 2023 show season.” Horse Ass’n’s Opp’n at 17; see also
Defs.’ Opp’n at 13–14. Cf. Nat’l Venture Capital Ass’n v. Duke, 291 F. Supp. 3d 5, (D.D.C.
2017) (vacating rule’s delay where consequences would not be “particularly disruptive”). Such a
vacatur “makes little sense” when this would cause a rule to “immediately spring into effect . . .
24
causing many regulated entities to instantly go out of compliance, without the lead time the . . .
rule envisioned.” Organic Trade Ass’n, 2022 WL 951335, at *9 (quotation marks and brackets
omitted). The loss of the lead-time contemplated by the year-long implementation period in the
2017 Anti-Soring Enforcement Rule affects the industry in at least two major ways.
First, the 2017 Anti-Soring Enforcement Rule would have permitted industry-overseen
DQPs to continue conducting inspections up until January 1, 2018, providing a year for new
HPIs to be trained and licensed in time for the 2018 show season. See Horse Ass’n’s Opp’n at
23–25. Allowing this Rule to spring into effect immediately without this lead-time would result
in no soring inspectors at all until HPIs have been trained and licensed under the Rule—a
process that would have to begin from scratch. See Defs.’ Opp’n at 15 (representing that “USDA
certainly did not begin to operationalize the new inspector training and licensing programs”). As
a result, as the Association contends, the immediate applicability of this part of the Rule would
“effectively require canceling the 2023 season.” Horse Ass’n’s Opp’n at 25.
Second, the 2017 Anti-Soring Enforcement Rule delayed the prohibition on pads until
January 1, 2018. See Defs.’ Opp’n at 15. The pad ban effectively outlaws the “performance
categories” of competition encompassing the vast majority of horses entered in shows like the
National Celebration. Horse Ass’n’s Opp’n at 25. Vacating the Repeal Action would result in
the sudden disqualification of the majority of horses at such events, without providing trainers or
show organizers sufficient lead-time to attempt to re-train their performance category horses or
re-organize the show line-ups. Id. at 25–26. Further, immediately banning all pads “would be
harmful to some horses currently on high pads,” particularly those horses whose feet were
trimmed in conjunction with the use of pads. Defs.’ Opp’n at 15 (quoting Compl., Exhibit A
(“2017 Pre-Publication Rule”) at 102, ECF No. 1-1). The 2017 Anti-Soring Enforcement Rule
25
was designed to permit trainers to reduce the horses’ pad sizes gradually so that the horses’
hooves could grow back naturally, reducing the stress placed on the horses. Id.
Plaintiffs do not address these anticipated repercussions to the show industry and horses,
arguing that “[i]f complying with the Final Rule would require a scramble for USDA or the
Association, it is only because they have chosen to delay compliance, even while dragging out
this litigation.” Pls.’ Opp’n at 17, ECF No. 53-1. Plaintiffs are correct that the D.C. Circuit
ruled in July 2022 that the 2017 Anti-Soring Enforcement Rule had been withdrawn without
undertaking required notice-and-comment procedures. To plaintiffs’ point, USDA could have
acted promptly in the last ten months to cure the deficiency either by taking steps to repeal the
2017 Anti-Soring Enforcement Rule in accord with appropriate administrative procedures or
prioritizing a new rulemaking to update that Rule. Still, regulated entities cannot be reasonably
expected to alter their conduct dramatically to anticipate the vacatur of the withdrawal while the
remedy remains pending—particularly without any cue from USDA.
Finally, immediate vacatur of the Repeal Action would disrupt USDA’s ongoing effort to
issue a new Notice of Proposed Rulemaking that is intended to “incorporate[] more recent
findings and recommendations, including” the 2021 National Academy of Sciences study.
Defs.’ Opp’n at 16 (quoting 86 Fed. Reg. 70,755). 12 When USDA purported to withdraw the
2017 Anti-Soring Enforcement Rule in December 2021, the agency explained that, reviewing the
rule “in light of the NAS report,” the agency “determined that the rule does not sufficiently
address the report’s findings,” and further that, given the time that has passed since the rule’s
publication, the agency “would likely need to update the underlying data and analyses that
12
As of February 2023, defendants represented that the draft Notice of Proposed Rule Making remained
under review by the Office of Information and Regulatory Affairs (OIRA), and was not yet public. Defs.’ Opp’n at
11.
26
supported the proposed rule.” 86 Fed. Reg. 70,755. The Court need not find that the 2017 Anti-
Soring Enforcement Rule is legally defective or invalid to note the obvious imprudence of
subjecting the regulated industry to a rule that USDA itself describes as insufficient in addressing
the findings of the NAS report. 13 Vacatur would be unnecessarily disruptive where the effect
would force the regulated entities to dramatically alter their conduct in compliance with what is
likely to be only a temporary rule.
In light of the “disruptive consequences of an interim change that may itself be changed,”
Allied-Signal, 988 F.2d 146, 150–51, remand without vacatur is the proper remedy here. “An
open-ended remand without vacatur, however, can create a new problem: The agency may have
little or no incentive to fix the deficient rule,” a potential consequence that both “common sense
and the empirical literature confirm.” Am. Public Gas Ass’n, 22 F.4th at 1030. “Therefore, it
may sometimes be prudent to require an agency to fix a deficient rule by a time certain, at which
the rule will automatically be vacated.” Id. This approach balances the risk of “agency
indifference” with the harms of immediate vacatur. In re Core Comms., Inc., 531 F.3d 849, 862
(Griffith, J., concurring). See also Am. Public Gas Ass’n, 22 F.4th at 1031 (remanding final rule
to agency to “take appropriate remedial action within 90 days,” and ordering the Final Rule to be
automatically vacated if the agency fails to do so); A.L. Pharma, Inc. v. Shalala, 62 F.3d 1484,
1492 (D.C. Cir. 1995) (leaving rule in place for 90 days, at which time the rule would be vacated
13
The Association cites the NAS Report to conclude that, because “the 2017 Rule suffers from a glaring
defect,” it is a “virtual certainty” that USDA would withdraw the 2017 Anti-Soring Enforcement Rule if it were to
conduct notice-and-comment procedures now. Horse Ass’n’s Opp’n at 19– 20; see also Horse Ass’n’s Reply Supp.
Remand Without Vacatur at 10–13, ECF No. 56. As already explained, see infra Part III.B.1, the Association
mistakes the relevant inquiry under the Allied-Signal factors. Plaintiffs, for their part, argue that, because the 2017
Anti-Soring Enforcement Rule did not alter the Scar Rule, which has remained the same since 1979, the Scar Rule
will remain in place whether or not the Repeal Action is vacated, calling the Association’s argument a “total red
herring.” See Pls.’ Opp’n at 9, 18–21. The parties overcomplicate the effect in this proceeding of the NAS Report
and USDA’s resultant attempted withdrawal of the proposed rule, since consideration of both the Report and agency
action simply demonstrate that the 2017 Anti-Soring Enforcement Rule is “an interim change that may itself be
changed.” Allied-Signal, 988 F.2d 146, 150–51.
27
if the agency failed to correct the rule’s defect); Rodway v. USDA, 514 F.2d 809, 817–18 (D.C
Cir. 1975) (remanding without vacatur but requiring the USDA to complete a new rule-making
process within 120 days where, as here, the rule at issue was procedurally defective). A time-
certain for continuation of the status quo on remand to the agency also addresses plaintiffs’
concern that USDA’s new rulemaking is “completely speculative.” Pls.’ Opp’n at 8.
Accordingly, an intermediate course is appropriate here: the Court will remand without
vacatur, but the 2017 Anti-Soring Enforcement Rule will take automatic effect after 120 days if
the agency fails to take appropriate remedial action. 14 This will allow the agency to attempt to
promulgate the updated version of the rule that is currently in rule-making process, or otherwise
to remedy the deficiency in the withdrawal of the 2017 Anti-Soring Enforcement Rule by
conducting notice and comment on the withdrawal, while ensuring that the agency gets busy
quickly. At the same time, this delay of four months in vacatur of the Repeal Action reduces the
regulatory whiplash suffered by the regulated industry that a remand with vacatur would
otherwise invite, and puts a finite time period in place, as plaintiffs suggested, see supra n.14, to
guard against agency inaction.
IV. CONCLUSION
For the foregoing reasons, USDA’s unlawful withdrawal of the 2017 Anti-Soring
Enforcement Rule is remanded without vacatur, but vacatur will automatically occur after 120
days if the agency fails to take appropriate remedial action. Accordingly, the Association’s
motion to intervene, ECF No. 33, is GRANTED, while the Association’s motion to participate as
amicus curiae in the alternative, ECF No. 48, is DENIED. Plaintiffs’ motion for entry of
14
Plaintiffs’ suggestion that the Court remand with vacatur, but stay vacatur until July 22, 2023—one year
after the D.C. Circuit decision that USDA was required to undertake notice-and-comment procedures before
withdrawal of the 2017 Rule—may be too short a period of less than three months. See Pls.’ Opp’n at 10.
28
judgment, ECF No. 42, defendants’ cross-motion for remand without vacatur, ECF No. 45, and
the Association’s cross-motion for remand without vacatur, ECF No. 46, are all GRANTED IN
PART AND DENIED IN PART.
An order consistent with this Memorandum Opinion will be entered contemporaneously.
Date: May 12, 2023
__________________________
BERYL A. HOWELL
U.S. District Judge
29