concurring in the result:
I agree that the judgment of the District Court must be affirmed for the reasons that this case is not ripe for judicial review and the District Court is without jurisdiction. I write separately, however, to voice my disagreement with the majority’s analysis of the District Court’s jurisdiction and its characterization of the procedural rules being followed by the Commission in this ongoing rulemaking proceeding.
I
The issue presented for review on this appeal is whether the District Court erred *41in dismissing these collateral actions1 seeking interlocutory judicial review of procedures governing an ongoing Federal Trade Commission trade regulation rulemaking proceeding. The alleged basis for pursuing this unusual interlocutory judicial intrusion is that the FTC’s rulemaking procedure involves “clear violations of law by the FTC which cannot be effectively remedied upon ultimate review of any trade regulation rule that may be forthcoming.”2 For the reasons stated herein I see no clear error of law requiring a judicial intrusion of this kind.
II
This children’s advertising rulemaking proceeding is being conducted by the Commission pursuant to the authority of Section 18 of the Federal Trade Commission Act, 15 U.S.C. § 57a (1976), which empowers the Commission to promulgate trade regulation rules, i. e., “rules which define with specificity acts or practices which are unfair or deceptive acts or practices in or affecting commerce (within the meaning of section [5(a)(1) of the FTC Act]).” 15 U.S.C. § 57a(a)(l)(B). It was initiated by the Commission upon consideration of petitions for rulemaking filed by Action for Children’s Television (ACT) on April 6, 1977, and by the Center for Science in the Public Interest (CSPI) on April 26, 1977. 43 Fed.Reg. 17968 (1978). The petitions cited evidence indicating that large numbers of television advertisements for sugared products are seen by children each year, that young children — particularly preschoolers — have limited ability to recognize “selling intent” in advertisements, that commercial television messages have “believability” for children, and that television advertisements for sugared products tend to promote unbalanced, over-sugared diets which have led to pandemic levels of tooth decay in this country. The petitions argued that television advertising of sugared products directed to children is unfair and deceptive in violation of Section 5 of the FTC Act and deleterious to the children’s health. 43 Fed.Reg. at 17968-17969.
After considering a report by its staff based on an initial investigation of the allegations of the petitions, the Commission voted to commence a rulemaking proceeding under Section 18 of the FTC Act, 15 U.S.C. § 57a. Accordingly, it issued a Notice of Proposed Rulemaking, together with a set of procedural rules to govern the proceeding. 43 Fed.Reg. 17967-17972 (1978).
The Notice of Proposed Rulemaking explained that “[b]ecause the Commission has found that the public interest requires expeditious procedures for the [proposed rulemaking], it has determined, pursuant to 16 CFR 1.20, to employ the procedures set forth in this notice for this proceeding.” 43 Fed.Reg. at 17968. Under the Notice the rulemaking began with a period for submission of written comments and proposed testimony for delivery at a legislative-type hearing. Following the written submissions the Notice contemplated a legislative hearing — which was in fact conducted — at which the statements would be delivered and the witnesses could be questioned by the presiding officer. Id. at 17968, 17970. Although no cross-examination of witnesses by other participants was permitted at the legislative hearings, interested persons could submit written questions to the presiding officer, who could ask them of the witnesses. Id.
Following the legislative hearing, interested persons will be afforded an opportunity to propose, based upon the rulemaking record, “disputed issues of fact that are material and necessary to resolve [by cross-examination] within the meaning of Section 18 of the FTC Act.” Id. at 17971. If the Commission finds that there are such issues it will hold a second hearing, at which cross-*42examination of relevant witnesses and written rebuttal submissions on those issues will be allowed. Id. Following the hearings the Commission staff and the presiding officer will issue reports and recommendations as to the form of a final rule, id., post-record comments may be filed, id., and the Commission will proceed to consider the rule.
Section D(2)(e) of the Notice, id., announced that the following procedure would pertain to both the legislative and disputed issues hearings:
e. Other information relevant to the rule. Any person who seeks to present information^] either orally or in writing, shall also present any studies or surveys in the possession, custody or control of the person or the organization he represents or is otherwise compensated by in connection with this proceeding which support, contradict or otherwise pertain to the person’s presentation. This need not include information submitted by any other person or information which is publicly available.
Since publication of the Notice, and indeed after the decision of the District Court in this case, the Commission revised Section D(2)(e).3 As a result of one of the changes, for example, the presiding officer at the hearings may accord in camera treatment to materials claimed to contain trade secrets or other confidential information. See 44 Fed.Reg. 3495, 3496 (1979).
Also applicable to the children’s advertising rulemaking was the Commission’s rule, promulgated in 1977, disallowing ex parte *43communications to the Commissioners and their personal staffs by persons outside the FTC, but not similar communications by the FTC staff. See 16 C.F.R. § 1.18(c) (1979). The proscription on ex parte contacts applies after commencement of any trade regulation rulemaking proceeding.4
Ill
A
Undeterred by the District Court’s dismissal of their complaint, appellants attack the Commission’s procedural rules in this ongoing children’s advertising rulemaking proceeding.5 Appellants raise three issues purportedly demonstrating “clear violations of law by the FTC which cannot be effectively remedied upon ultimate review of any trade regulation rule that may be forthcoming.” Their first allegation is that the rules of practice announced in the notice of proposed rulemaking have a “substantial impact” upon rights guaranteed them under Section 18 — -particularly cross-examination rights — and thus notice and comment under the Administrative Procedure Act (APA), 5 U.S.C. §§ 701-706 (1976), was required before the rules could be used in these proceedings. Appellants also argue that Section (D)(2)(e), requiring submission of all pertinent studies and surveys, exceeds the Commission’s authority and violates their statutory and constitutional rights to participate in the rulemaking. Finally, appellants allege that the FTC’s 1975 rule governing ex parte contacts, to the extent it permits intra-agency communications between FTC staff and the Commissioners, violates the due process clause and the statutory requirement that rulemaking be based on the record.
In light of the special judicial review provisions contained in Section 18, it would appear that the District Court lacked subject matter jurisdiction over the claims presented here by appellants; thus this court would have no subject matter jurisdiction with respect to interlocutory review. The District Court pretermitted this jurisdictional issue,6 probably because lack of ripeness was so obvious.
B
Section 18 provides that judicial review of a trade regulation rule lies exclusively in a proper Court of Appeals after the administrative proceeding is concluded.7 The court shall set aside the rule if it determines that the rule is not supported by substantial evidence in the record or that
a Commission rule or ruling under subsection (c) of this section limiting the petitioner’s cross-examination or rebuttal submissions,
has precluded disclosure of disputed material facts * * *.
15 U.S.C. § 57a(e)(3)(B)(ii) (emphasis added). The statute further provides:
*44(C) A determination, rule, or ruling of the Commission described in paragraph (3)(B)(i) or (ii) may be reviewed only in a proceeding under this subsection and only in accordance with paragraph (3)(B). * * * [8]
Among other things, paragraph (3)(B) requires the reviewing court to “tak[e] due account of the rule of prejudicial error * * *And, according to the APA, the way to determine prejudicial error is on the record taken as a whole. 5 U.S.C. § 706.
In Section 18 Congress also specifically provides that a Court of Appeals, upon the filing of a petition for review of a final trade regulation rule, should conduct judicial review in accordance with the provisions of the APA, 5 U.S.C. § 706, as well as the more specific review provisions of Section 18(e). The reviewing court must determine whether the final rule resulted from agency action which was “without observance of procedure required by law,” id. § 706(2)(D), “in excess of statutory jurisdiction, authority, or limitations,” id. § 706(2)(C), or “contrary to constitutional right,” id. § 706(2)(B). If the court finds that the agency action falls within one or more of the above categories, and that such action was not harmless error, 15 U.S.C. § 57a(e)(3), the court shall set aside the trade regulation rule and remand to the agency for corrective action.
All of appellants’ claims appear to be cognizable and remediable under this statutory procedure for review of a final trade regulation rule. To the extent that appellants’ notice and comment claim turns on the alleged impact of the procedural rules on cross-examination and rebuttal rights, it is a challenge to “Commission rule[s] * * limiting * * * cross-examination or rebuttal submissions,” 15 U.S.C. § 57a(e)(3)(B)(ii), which may be reviewed only in accordance with the very specific judicial review provisions of Section 18. 15 U.S.C. § 57a(e)(5)(C). Pursuant to Section 18(e)(3), 15 U.S.C. § 57a(e)(3), which incorporates the judicial review provisions of 5 U.S.C. § 706(2)(A)-(D), a Court of Appeals, upon review of a final trade regulation rule, could consider and remedy appellants’ grievances, to wit: that the FTC unlawfully failed to comply with the notice and comment provisions of the APA, an alleged violation of 5 U.S.C. § 706(2)(D); that the FTC exceeded its authority in issuing Section (D)(2)(e), an alleged violation of id. § 706(2)(C); and that Section (D)(2)(e) and the ex parte communications rule violate the FTC Act, see id. § 706(2)(A), (C), and the Constitution, see id. § 706(2)(B).
Rather than awaiting final agency action and pursuing the statutorily prescribed method of review, appellants rushed to the District Court in an effort to obtain a non-statutory, interlocutory remedy. Although appellants relied on the saving clause of Section 189 as giving the District Court, and in turn this court, jurisdiction over their claims, I believe the District Court was without subject matter jurisdiction. As this court stated in Nader v. Volpe, 151 U.S.App.D.C. 90, 95, 466 F.2d 261, 266 (D.C. Cir. 1972):
[Wjhen Congress has specified a procedure for judicial review of administrative action, courts will not make nonstatutory remedies available without a showing of patent violation of agency authority or manifest infringement of substantial rights irremediable by the statutorily-prescribed method of review * * *.
(Footnotes omitted.) Accordingly, appellants could properly resort to nonstatutory remedies under the saving clause only if they could show that the Commission’s actions were patently ultra vires or patently violated substantial rights in a manner not remediable upon Section 18 review.10 See *45id., 151 U.S.App.D.C. at 100, 466 F.2d at 271.
The District Court determined that the rules governing the children’s advertising rulemaking proceeding and the Commission’s actions in establishing them were not patently ultra vires.11 In this regard the court relied in part on the Supreme Court’s teaching that an agency’s interpretation of its own statute should be accorded “great deference” by the judiciary.12 Udall v. Tallman, 380 U.S. 1, 16, 85 S.Ct. 792, 13 L.Ed.2d 616 (1965).13
As to appellants’- allegations that these procedural rules “clearly violated” constitutional and statutory rights, the District Court, having assumed the existence of subject matter jurisdiction, correctly concluded that the claims were not ripe for judicial resolution. In dismissing the case the court relied heavily on and quoted the following classic formulation of the ripeness doctrine from Abbott Laboratories v. Gardner, 387 U.S. 136, 148-149, 87 S.Ct. 1507, 18 L.Ed.2d 681 (1967):
Without undertaking to survey the intricacies of the ripeness doctrine it is fair to say that its basic rationale is. to prevent the courts, through avoidance of premature adjudication, from entangling themselves in abstract disagreements over administrative policies, and also to protect the agencies from judicial interference until an administrative decision has been *46formalized and its effects felt in a concrete way by the challenging parties. * *
(Emphasis added; footnote omitted.)14
IV
Appellants’ claims on this appeal must be examined with reference to two benchmarks — whether the Commission’s actions were patently inconsistent with its statutory authority, and whether the rules applicable to the children’s advertising rulemaking proceeding clearly violate substantial statutory or constitutional rights in a manner beyond the capability of a Court of Appeals to repair upon review of any final trade regulation rule. See Nader v. Volpe, supra, 151 U.S.App.D.C. at 95, 101, 466 F.2d at 266, 272; see also Abbott Laboratories v. Gardner, supra, 387 U.S. at 152, 87 S.Ct. at 1507.
A
Appellants attack these procedural rules as invalid because they are in some respects different from the set of procedural rules issued for rulemaking under Section 18 in 1975 15 and were not subjected to notice and comment rulemaking under the APA, 5 U.S.C. § 553(b) (1976). Thus appellants would have the Commission provide a Section 553(b) notice and comment proceeding for the children’s advertising rulemaking procedural rules before undertaking the Section 553(b) notice and comment proceeding required to consider the proposed Section 18 substantive rules. As the District Court held, this contention is without merit.16 Section 553(b) of the APA by its terms does not apply to procedural rules except where required by the statute they are implementing.17 The Federal Trade Commission Act has no such requirement.18
*47Despite the fact that no statute expressly requires these procedural rules to be subjected to notice and comment, appellants argue that compliance with Section 553(b) of the APA is necessary here because these procedural rules will “have a substantial impact on the rights and obligations of parties who intend to participate in the proceeding.” 19 Assuming the continued vitality of the “substantial impact test, I, in agreement with the District Court, conclude that the test does not avail appellants in this case.20 Appellants have failed to demonstrate that the rules governing the children’s advertising proceedings are likely to substantially restrict their rights or increase their obligations with respect to participation in this Section 18 rulemaking. More*48over, to the extent that the rules as applied may ultimately affect appellants’ participatory rights, their remedy lies in a challenge to the final trade regulation rule, as specifically directed by Congress. 15 U.S.C. § 57a(e)(3)(B).
When it published the initial notice of proposed rulemaking under Section 18 in this case, the Commission published the new procedural rules and stated that expeditious procedures were in the public interest because health issues were involved.21 43 Fed.Reg. at 17968. In so doing the Commission invoked its authority under 16 C.F.R. § 1.20 (1978) — a 1975 rule which had been subjected to notice and comment before promulgation:
§ 1.20 Expeditious procedure.
Any or all of the procedures established in this subpart may be dispensed with by the Commission, to the extent that they are not otherwise required by law, when it finds, for good cause, that such procedures are impractical, unnecessary, or contrary to the public interest. In that case the Commission shall publish with the rule or amendment a brief statement of its reasons for dispensing with any such procedures.
(Emphasis added.)22 The Commission was aware that the children’s advertising rule-making, considering the public interest and the special interests involved, might be almost interminable, as indeed is proving to be the case, unless some change was made in the 1975 rules.23 So the children’s advertising rules are “experimental” procedural rules designed “to avoid unnecessary costs or delay.” 15 U.S.C. § 57a(c)(2). See 43 Fed.Reg. at 17968. And provided those rules appear consistent with applicable law, 16 C.F.R. § 1.20 (1979), appellants are not entitled to judicial review at this juncture.
A proper reading of the language and legislative history24 of Section 18 clearly indicates that the format of the children’s advertising proceedings is consistent with the congressional mandate. The bifurcation of the statutory “informal hearing” into a first stage “legislative hearing” and a second stage “disputed issues hearing” not only basically follows the 1975 rules, but parallels subsections (c)(1)(A) and (c)(1)(B) of Section 18 as well. During the legislative hearing interested persons may present their positions orally as well as in writing, consistent with subsection (c)(1)(A). Cross-examination of persons presenting information is not required at this stage because statutory cross-examination rights do not attach until and unless the Commission designates “disputed issues of material fact.” The designation will occur after the legislative hearing, and rebuttal and cross-examination on those disputed issues will occur in the second stage hearing, satisfying'subsection (c)(1)(B).
While the FTC concedes that this procedure differs marginally from that under the 1975 rules, appellants exaggerate the degree of difference. Under the 1975 rules the FTC would publish an initial notice of proposed rulemaking, inviting interested persons to submit written comments on the rule and to propose disputed issues of fact. 16 C.F.R. § 1.11 (1979). After evaluating only these written submissions the Commission would designate the issues which it determined to be disputed, and it would publish the designated issues in the final notice of proposed rulemaking. Id. § 1.12. An informal hearing, including oral presen*49tations in addition to rebuttal and cross-examination, would then be held to resolve the designated disputed issues. Id. §§ 1.12, 1.13. Thus the principal difference between the 1975 procedure and the children’s advertising procedure is that under the latter the designation of disputed issues is deferred until after oral presentations at a legislative hearing. Under both procedural formats rebuttal and cross-examination occur only after disputed issues are designated and must pertain to those issues.
To the extent that the legislative hearing, after notice and comment under the children’s advertising rules, better enables the parties to suggest, discuss, and hopefully to agree on some issues, and the Commission to designate, only issues which are in fact “disputed,” thereby eliminating unnecessary cross-examination, this bifurcated hearing comports more than the 1975 rules with the congressional mandate “to avoid unnecessary costs or delay” in the rulemaking proceedings.25 15 U.S.C. § 57a(c)(2).
This bifurcated hearing procedure has no “substantial impact” on participants’ rights to cross-examination. Actually, it allows the parties greater participation in determining the really disputed issues of fact to be reserved for cross-examination. Moreover, Congress granted parties only qualified cross-examination rights, not trial-type cross-examination. 15 U.S.C. § 57a(c)(2), (3). Parties have a “right” to cross-examination only on disputed issues of material fact, only after the Commission designates such issues, and only if the Commission determines that cross-examination (rather than rebuttal) is both appropriate and required for resolution of the disputed issues. Even after satisfying these hurdles the parties themselves do not necessarily put their own questions to the witnesses. The statute provides that the Commission or the Administrative Law Judge may decide to cross-examine witnesses on behalf of the interested parties. 15 U.S.C. § 57a(c)(2).
Appellants also criticize the Commission’s definition of “disputed issues of material fact,” which under Section 18 give rise to cross-examination rights, that is contained in the initial notice of the children’s advertising rulemaking. The FTC statute provides for cross-examination on “disputed issues of material fact it is necessary to resolve.” 26 The notice of rulemaking provides that persons may propose “disputed *50issues of fact that are material and necessary to resolve within the meaning of Section 18 * * * 27 It then goes on to explain that persons should propose only issues of “specific or adjudicative, in contrast to legislative, fact,” and only “crucial issues about which a bona fide dispute * * exists * * * 28 Appellants focus on a distinction between “material” and “crucial” facts in alleging that the notice’s definition will sharply curtail the scope of, and thus appellants’ ability to participate in, the disputed issues hearing.29 But the plain language of the statute is that a “disputed fact” must be both material and “necessary to resolve.” The Commission’s use of the word “crucial” obviously does not contradict or substantially alter the statutory standard of “necessary to resolve.” This “crucial” controversy is nothing more than lawyers’ nitpicking. To suggest that it provides a basis for a judicial intrusion into an ongoing agency rulemaking proceeding is pure reaching for a result prohibited by Vermont Yankee Nuclear Power Corp. v. Natural Resources Defense Council, Inc., 435 U.S. 519, 98 S.Ct. 1197, 55 L.Ed.2d 460 (1978), and. a legion of cases stemming from Myers v. Bethlehem Shipbuilding Corp., 303 U.S. 41, 58 S.Ct. 459, 82 L.Ed. 638 (1938).
B
Appellants also contest the applicability of the Commission’s 1977 rule, 16 C.F.R. § 1.18(c) (1979), governing communications to Commissioners after the commencement of rulemaking proceedings.30 Rule 1.18(c) provides that members of the public may not communicate with Commissioners or their personal staffs except as provided in the rules concerning public participation in the proceedings. If any prohibited ex parte communication occurs the Commissioner or staff member must make public the form and content of the communication.
Unlike the Commission rule governing ex parte communications during adjudicative proceedings, 16 C.F.R. § 4.7 (1979),31 Rule 1.18(c) in terms does not prohibit communi*51cations between the FTC staff and the Commissioners and their personal staffs during the course of rulemaking proceedings. Appellants urge that Rule 4.7, rather than Rule 1.18(c), should apply to this Section 18 rulemaking because it is “a proceeding in which facts will be adjudicated”32 and the FTC staff “has wedded its allegiance to one side of the dispute * * * 33 Appellants point to the possibility that the FTC staff might “secretly * * * plead their convictions” before individual Commissioners,34 thus irreparably biasing the decisionmakers and rendering invalid any final trade regulation rule.
Any attempt to characterize the children’s advertising proceedings as an “adjudication” or “adversarial process” completely disregards the congressional mandate in Section 18 requiring informal rulemaking.35 15 U.S.C. § 57a(b), (c). Moreover, the District Court correctly perceived that the law in this circuit is unsettled with regard to the propriety of various types of intra-agency communications that might occur during the course of a rulemaking.36 Since the nature of the contacts which may occur between the FTC staff and the Commissioners during this rulemaking is a matter of speculation, and since a court could not now determine whether any such communications would constitute prejudicial error,37 this claim is clearly unripe for review. Staff recommendations and other information which the Commission considers relevant to any final trade regulation rule will be included in the rulemaking record,38 and thus appellants’ claims may be adequately *52considered by a Court of Appeals upon review of a final rule. Having shown neither a patent violation of agency authority nor a manifest infringement of substantial rights irremediable by the statutory method of review, appellants were not entitled to relief from the District Court.
C
Finally, appellants argue that Section (D)(2)(e) of the children’s advertising rules, requiring participants to submit all studies and surveys in their possession that pertain to their presentations at the hearings, burdens their allegedly “unconditional right”39 under Section 18 and the First Amendment to present written and oral comments at the rulemaking proceedings.
It flies in the face of reason to suggest that Congress intended Section 18 to grant a rulemaking participant the unqualified right to suppress relevant documents and studies in its possession while making a possibly biased and inaccurate presentation to the Commission, perhaps using other favorable documents and studies which it had prepared for the occasion, when that body is exercising legislative powers delegated to it by Congress. Indeed, the legislative history suggests the contrary:
Participation of any interested person in an oral hearing would be subject to rules and rulings which the Commission is authorized to make to avoid unnecessary costs or delay. This would assure that oral presentations and cross-examination could not be used as devices to interfere with the Commission’s effective use of rulemaking.[40]
The Commission issued Section (D)(2)(e) pursuant to its congressional mandate “to avoid unnecessary costs or . delay.” 15 U.S.C. § 57a(c)(2). Obviously, it assists the Commission and the parties in identifying the “disputed issues of material fact” to be reserved for cross-examination, the purpose of which is to cut through to the heart of the matter to find the truth.
The question then is whether the existence41 of Section (D)(2)(e) is likely to subject parties wishing to participate in this rulemaking to obligations substantially different from those already applicable under the FTC Act. Section 18 subjects all participants to cross-examination by both the Commission and other participants in order to assure a full and fair presentation of relevant facts. Section (D)(2)(e) is designed to achieve the same end. It is hoped that participants will voluntarily comply with the rule’s provisions in furtherance of the public interest in efficient and responsible rulemaking. However, if participants choose not to comply, then the Commission will achieve that end, albeit less efficiently, through means of enforcement that are within its recognized authority. To the extent Section (D)(2)(e) is enforced by subpoena, participants are subject to the FTC’s usual statutory subpoena power.42 And to the extent other consequences may be attached to noneompliance with its requirements,43 Section (D)(2)(e) accords with this court’s prior rulings that agencies may rely *53on measures other than subpoenas when parties withhold information uniquely within their control.44 Thus I think the apparent effect of Section (D)(2)(e) simply consists of obligations now extant, and appellants’ claims of illegality are, at best, purely conjectural.
Appellants also see a First Amendment problem with Section (D)(2)(e) in that it somehow inhibits their right to participate in the rulemaking proceeding. The point is so trivial and so lacking in merit that the District Court did not even address it. In any event, appellants may not participate in the rulemaking on their own terms. Unless they can show that the Commission’s terms are unlawful under the First Amendment or otherwise, they become the price for participation. Certainly appellants have not here shown Section (D)(2)(e) to be so obviously unlawful as to justify interlocutory judicial review in the middle of the administrative proceedings.
As the District Court held, appellants’ claims are not ripe for judicial resolution in any court, regardless of whether the focus is on the substantive merits of the rule or on the “substantial impact” which allegedly makes procedural rules “substantive” for purposes of APA notice and comment.45 In addition, the Commission’s revision of Section (D)(2)(e) while this appeal was pending indicates that the District Court did not err in finding that the rules lacked finality. Indeed, the Section (D)(2)(e) revision may well have rendered this aspect of the case moot.46
V
Congress in Section 18 set the substantive rules for this proceeding. The rules being employed by the Commission in the children’s advertising proceeding are, as Judge Gesell held, clearly rules of procedure.47 In their effort to disrupt and frustrate the Commission’s proceeding, appellants have mischaracterized both the general nature and the specific nature of participants’ rights under Section 18. Congress never intended that persons interested in an FTC rulemaking proceeding could present only information that suited their own purpose; participants have always been subject by statute to cross-examination and subpoena, and by prior court decision to other measures designed to achieve a balanced consideration of facts.48 Congress never intended that participants in informal rulemaking under Section 18 would have the type of wide-ranging cross-examination rights afforded parties in formal adjudication; participants were authorized to cross-examine witnesses only on designated disputed issues and only when the Commission considered that procedure to be both appropriate and necessary.49
The Supreme Court made this observation in Vermont Yankee, supra, 435 U.S. at 524, 98 S.Ct. at 1202:
[T]his Court has for more than four decades emphasized that the formulation of procedures [in rulemaking proceedings] was basically to be left within the discretion of the agencies to which Congress had confided the responsibility for substantive judgments. * * *
The Court has also lectured us, again and again, that an agency’s interpretation of its own statute should be accorded “great def*54erence” by the judiciary. Udall v. Tallman, supra, 380 U.S. at 16, 85 S.Ct. 792, 13 L.Ed.2d 616.50 If there is one thing the Congress made clear in passing the legislation we interpret today, as did a unanimous Supreme Court in Vermont Yankee, it is that courts should allow agencies breathing room to comply with the congressional mandate to work their will within the law, to experiment51 and to innovate in the public interest in an effort, among other things, to relieve the three constitutional branches of some of the more mundane chores of government. Courts should at least wait until the agency, particularly one experimenting with and interpreting a new statute, has exercised its responsibility under law before subjecting it to judicial judgment. Disrupting an ongoing administrative process is not done with grace, even by judges. It is a tactic of delay and frustration which Congress has outlawed in this case. See 15 U.S.C. § 57a(c)(2), (e)(5)(C); Nader v. Volpe, supra.
. As their names indicate, appellants are representatives of manufacturers and purveyors of children’s foods and their advertising agencies which package and direct their advertising at children over national television.
. Brief for appellants at 20.
. See 44 Fed.Reg. 3495 (1979). In light of the revision, the § (D)(2)(e) issue raised by appellants is largely moot. As revised § (D)(2)(e) provides:
* * * Any person who seeks to present testimony or written comments which refer to or rely upon any study or survey whether published or unpublished shall also identify and submit to the presiding officer any studies or surveys in existence as of the date of the submission of the comments or proposed testimony that (1) are in the possession, custody or control of that person or of the organization he represents or is otherwise compensated by in connection with this proceeding; (2) support, contradict or otherwise pertain to the person’s testimony or comments; and (3) are known to or in the files of any individual involved in the preparation of the testimony or comments. Such studies and surveys should not be submitted if they are publicly available or have been made part of the rulemaking record by any other person. For purposes of this paragraph, the terms “survey” and “study” means [sic] research and investigations such as literature searches, experiments, clinical tests, and polls.
The requirements of this paragraph apply only to the person on whose behalf testimony is given or comment made, and do not apply to the attorneys for such a person, unless and to the extent that the attorneys themselves testify or submit comments on their own behalf, and do not apply to members of an organization that testifies or comments unless and to the extent that the member also testifies or comments on the member’s own behalf.
If a study or survey is deemed privileged or confidential, or is subject to the control of a third party, the person may request that the presiding officer grant relief from the operation of this paragraph, in which event the study or survey will not be put on the rule-making record until the presiding officer has disposed of the request. The submission of a survey or study to the presiding officer pending its disposition shall not be deemed a waiver of any privilege asserted in a request for relief. Such relief may include, for example, in camera treatment under appropriate limitations on access, use or disclosure; deletion, masking or coding of data, a determination that in view of the relative pertinence and sensitivity, or absence of control, the study or survey need not be produced; or such other relief as the presiding officer may deem reasonable and appropriate.
In the event of unexcused or unjustified non-compliance with this paragraph, the presiding officer may (1) impose appropriate sanctions, including, for example, striking or assigning diminished weight to the person’s testimony or comment, or drawing adverse inferences; and (2) may issue subpoenas.
All determinations made by the presiding officer with respect to a request for relief or the imposition of sanctions under this paragraph shall be specifically identified and made part of the rulemaking record.
44 Fed.Reg. at 3496.
In order to assure that persons whose response to the Commission’s rulemaking notice was based on aspects of or perceived problems under the original version were not prejudiced by the time of the revision, the Commission also afforded such persons an opportunity to submit belated or revised comments.
. A different rule applies to FTC adjudicative proceedings. See 16 C.F.R. § 4.7(b) (1979).
. The delay of agency rulemaking has become a scandal of such proportions as to merit the comments of judges, lawyers, legal commentators, and even Congress. As the Supreme Court has demonstrated in Vermont Yankee Nuclear Power Corp. v. Natural Resources Defense Council, Inc., 435 U.S. 519, 98 S.Ct. 1197, 55 L.Ed.2d 460 (1978), rulemaking proceedings are overjudged and overlawyered, with the result that the protection Congress has sought to provide the public in authorizing agency rule-making has, in many instances, been a long time coming — if indeed it comes at all.
For example, appellants’ position is that since the procedural rules under which the Commission is conducting the children’s advertising rulemaking proceedings were not themselves subjected to notice 'and comment rule-making under § -553(b) of the Administrative Procedure Act (APA), 5 U.S.C. § 553(b) (1976), the entire § 18 proceeding is invalid. Thus appellants would have this court order the Commission to conduct two notice and comment rulemaking proceedings, one after the other, one for the procedural rules, followed by another for the children’s advertising § 18 rule-making.
. See, e. g., Philbrook v. Glodgett, 421 U.S. 707, 721, 95 S.Ct. 1893, 44 L.Ed.2d 525 (1975); Adams v. Vance, 187 U.S.App.D.C. 41, 45 n.7, 570 F.2d 950, 954 n.7 (D.C.Cir. 1977) (court need not rule on a jurisdictional question when the issue is difficult and inadequately presented in the record or briefing and the merits are clearly against the party seeking to invoke jurisdiction).
. 15 U.S.C. § 57a(e)(5)(B).
. 15 U.S.C. § 57a(e)(5)(C) (emphasis added).
. 15 U.S.C. § 57a(e)(5)(A): “Remedies under the preceding paragraphs of this subsection are in addition to and not in lieu of any other remedies provided by law.”
.This result pertains “notwithstanding the absence of an express statutory command of exclusiveness.” Whitney Nat’l Bank in Jefferson Parish v. Bank of New Orleans & Trust Co., 379 U.S. 411, 422, 85 S.Ct. 551, 13 L.Ed.2d 386 (1965), quoted in Nader v. Volpe, 151 U.S.App.D.C. 90, 92, 466 F.2d 261, 268 (D.C.Cir. 1972). *45Congress’ prescription of a specific statutory review scheme reflects a policy choice designed to deter both piecemeal review of Commission actions and repetitive litigation, and “to avoid unnecessary costs or delay” during the rule-making proceeding, 15 U.S.C. § 57a(c)(2). See Califano v. Sanders, 430 U.S. 99, 108, 97 S.Ct. 980, 51 L.Ed.2d 192 (1977); Nader v. Volpe, supra, 151 U.S.App.D.C. at 95-97, 466 F.2d at 266-268. This being true, “[o]ur duty, of course, is to respect that choice.” Califano v. Sanders, supra, 430 U.S. at 108, 97 S.Ct. at 986.
.Although the District Court questioned whether § (D)(2)(e) was within the Commission’s power, the court found the issue “far from clear” and believed that application of § (D)(2)(e) was necessary before the issue could be resolved. See Joint Appendix (JA) 161. The District Court then discussed appellants’ notice and comment claim as follows;
Now 1 am aware that related to this D(2)(e) issue is the claim that the procedures established are inconsistent with the regulations that have been adopted by the Commission for promulgation of trade regulation rules and that it is contended that this change is of such character that new rule-making proceedings would be necessary before the initiation of the proceedings to include anything comparable to D(2)(e).
The Court’s view is that that contention, which relates also to other aspects of the case which I need not mention, is not sound. That these rules are procedural in character and that in any event the Commission kept its discretion to depart from the published trade regulation rules which it promulgated; and it is well that the Court give deference at this stage to the Commission’s own interpretation of its regulations.
JA 162 (emphasis added). As to the challenge to the ex parte communications rule, the court concluded:
[CJertainly there is no direction to the District Court at this time which would enable it to say with certainty that in this rule-making proceeding certain contacts by the staff with the Commission are forbidden.
JA 159-160 (emphasis added).
. See JA 162, quoted in note 11 supra.
. See Columbia Broadcasting System, Inc. v. Democratic Nat’l Committee, 412 U.S. 94, 121, 93 S.Ct. 2080, 2096, 36 L.Ed.2d 772 (1973): “[W]e are guided by the ‘venerable principle that the construction of a statute by those charged with its execution should be followed unless there are compelling indications that it is wrong . . . Quoting Red Lion Broadcasting Co. v. FCC, 395 U.S. 367, 381, 89 S.Ct. 1794, 23 L.Ed.2d 371 (1969). See also E. I. duPont de Nemours & Co. v. Collins, 432 U.S. 46, 54-55, 97 S.Ct. 2229, 53 L.Ed.2d 100 (1977). Our own cases are to the same effect. See, e. g., Richmond Power & Light Co. v. FERC, 187 U.S.App.D.C. 399, 404 & n.19, 574 F.2d 610, 615 & n.19 (D.C.Cir. 1978); Wilderness Society v. Morton, 161 U.S.App.D.C. 446, 448-449, 479 F.2d 842, 864-865 (D.C.Cir.) (eh banc), cert. denied, 411 U.S. 917, 93 S.Ct. 1550, 36 L.Ed.2d 309 (1973); Trans World Airlines, Inc. v. CAB, 128 U.S.App.D.C. 126, 138, 385 F.2d 648, 660 (D.C.Cir. 1967), cert. denied, 390 U.S. 944, 88 S.Ct. 1029, 19 L.Ed.2d 1133 (1968).
. Particularly where, as here, the relief sought is discretionary- — the injunctive and declaratory judgment — the District Courts have been reluctant to take affirmative action and, in such cases, appellate courts have been slow to find an abuse of discretion. See Abbott Laboratories v. Gardner, 387 U.S. 136, 148, 87 S.Ct. 1507, 18 L.Ed.2d 681 (1967).
. 40 Fed.Reg. 15232 (1975).
. See note 11 supra.
. Section 553(b) of the APA, 5 U.S.C. § 553(b), reads in pertinent part:
Except when notice or hearing is required by statute, this subsection does not apply— (A) to * * * rules of agency organization, procedure, or practiced]
. The provisions of § 18 are accurately outlined in appellees’ brief at 3--5 as follows:
Sections 18(b)~(d) (15 U.S.C. § 57a(b)-(d)) establish procedures supplementing the informal rulemaking requirements of the APA (5 U.S.C. § 553), by which such rules may be promulgated. Rulemaking is commenced by publication of a notice of proposed rulemaking “stating with particularity the reason for the proposed rule” (15 U.S.C. § 57a(b)). The Commission is required to allow interested persons to submit data, views, and arguments in writing or orally and to make all submissions publicly available. Further, to the extent that “the Commission determines that there are disputed issues of material fact it is necessary to resolve,” the Commission is required to hold an “informal” hearing, including rebuttal submissions and such cross-examination of persons as “the Commission determines (i) to be appropriate, and (ii) to be required for a full and true disclosure with respect to” such disputed issues of material fact that the Commission has determined it is necessary to resolve (15 U.S.C. § 57a(c)). Following the completion of the proceedings, the Commission may issue a rule, together with a statement of basis and purpose, or it may decide not to issue a rule (15 U.S.C. § 57a(d)). These procedures are supplemented by the Commission’s rules (16 C.F.R. § 1.7 et seq.) and by procedures established in the notice of proposed rulemaking * * * .
Rules promulgated by the Commission under Section 18 are subject to judicial review not only in enforcement proceedings subsequently initiated by the Commission for rule violations (see 15 U.S.C. § 45(m)(l)(A)), but also, at the instance of any interested person, in an appropriate court of appeals, immediately upon completion of the Commission’s rulemaking proceeding (15 U.S.C. [§] 57a(e)). The court of appeals is authorized to set aside the rule if, “taking due account of the rule of prejudicial error,” the Commission’s action is “not supported by substantial evidence in the rulemaking record * * * taken as a whole”; or if the Commission “has precluded disclosure of disputed material facts which was necessary for fair determination by the Commission of the rulemaking proceeding taken as a whole”; or on any ground set forth in 5 U.S.C. § 706(a)(A)-(D), including that the Commission’s action is "without observance of procedure required by law”. 15 U.S.C. § 57a(e)(3). The reviewing court is also authorized to grant leave to petitioners, or the Commission, to make addi*47tional oral submissions or written presentations in the rulemaking proceeding, and to review modified or new rules made by reason of these additional submissions or presentations. 15 U.S.C. § 57a(e)(2).
(Footnote omitted.)
. Brief for appellants at 25.
. In arguing that the children’s advertising hearing rules are not procedural rules, appellants rely upon the “substantial impact” test articulated in National Motor Freight Traffic Ass’n v. United States, 268 F.Supp. 90 (D.D.C.1967) (three-judge court), aff’d per curiam, 393 U.S. 18, 89 S.Ct. 49, 21 L.Ed.2d 19 (1968), and Pickus v. United States Board of Parole, 165 U.S.App.D.C. 284, 507 F.2d 1107 (D.C.Cir.1974).
Although the Commission in its brief questions whether the “substantial impact” test can survive the Vermont Yankee decision, 1 do not reach that question. Rather, assuming the continued vitality of the “substantial impact” cases, as indicated in text, I conclude that the test has no application here.
Actually, this case is so dissimilar to National Motor Freight and Pickus that appellants’ reliance on those cases exposes the bankruptcy of their position. In National Motor Freight, as a result of the Supreme Court’s decision in T.I.M.E. Inc. v. United States, 359 U.S. 464, 79 S.Ct. 904, 3 L.Ed.2d 952 (1959), the Interstate Commerce Commission established a “purely administrative" remedy of reparations for past charges determined by the ICC to be illegal. Congress had enacted only a judicial remedy. 268 F.Supp. at 95. The administrative scheme provided that a carrier and a shipper could voluntarily agree that the shipper’s past rate had been illegally high, and their agreement would be subject to Commission review. However, this informal adjudication of whether a certain rate had been illegal could have had “palpable effects upon other carriers and shippers” who were not parties to that agreement. Id. at 96. If those carriers had rates identical to the administratively adjudicated rate, their rates would have been declared illegal without an opportunity to be heard on the question, and the ICC’s determination of the issue of rate illegality would be applicable by statute in any subsequent judicial action to compel payment of reparations. Thus the “substantial impact” of the administrative scheme is obvious. See id. at 92, 94.
In Pickus, a suit brought by inmates of federal penal institutions, a panel of this court held that rules issued without rulemaking of any kind and defining parole selection criteria “are substantive agency action, for they define a fairly tight framework to circumscribe the [Parole] Board’s statutorily broad power,” 507 F.2d at 1113, and are “calculated to have a substantial effect on ultimate parole decisions,” id. at 1112-1113. By establishing specific categories and subcategories of factors relevant to a parole decision, the rules minimized the influence of some factors and “encourag[ed] decisive reliance” upon others. Id. at 1113. These rules, therefore, were substantive, requiring rulemaking under § 553(b).
The direct impact of the rules at issue in both National Motor Freight and Pickus clearly would have been upon substantive rights of the plaintiffs challenging them, whereas the direct impact, if any, of the FTC rules here at issue would be upon procedural rights accorded by § 18. In addition, while the rules in the former cases were administratively created regulations designed to supplement or to circumscribe statutory provisions, the FTC here is seeking to follow congressionally prescribed procedures in § 18 and its mandate “to avoid unnecessary costs or delay” in the substantive rulemaking. See 15 U.S.C. § 57a(c). Finally, and most importantly, judicial review of the ultimate agency decisions and hence the rules governing the decisionmaking in both National Motor Freight and Pickus were limited or nonexistent, whereas here Congress specifically provided that the FTC’s procedural rules and rulings were to be judicially scrutinized for any prejudicial impact upon review of the final substantive (trade regulation) rule. See 15 U.S.C. § 57a(c); Part IV infra.
In sum, despite a Herculean effort appellants have simply failed to demonstrate that the FTC’s facially procedural rules will have a substantial impact on their statutory rights. The present posture of appellants’ challenge simply does not permit a reasoned determination of whether the rules will have any impact, and more importantly whether they will have a prejudicial impact, on rights granted under § 18 as properly construed. See 15 U.S.C. § 57a(e)(3).
. See Part II supra.
. See 40 Fed.Reg. 15237 (1975); id. at 33966.
. Several commentators had criticized the FTC for its unwieldly and lengthy proceedings. See, e. g., 1 K. Davis, Administrative Law Treatise § 6:21 at 551-553 (2d ed. 1978); Kestenbaum, Rulemaking Beyond APA: Criteria for Trial-Type Procedures and the FTC Improvement Act, 44 Geo.Wash.L.Rev. 679, 696-705 (1976). Indeed, the Commission specifically intended the rules governing the children’s advertising proceedings to be responsive to similar congressional criticism of proceedings under the 1975 rules. See 43 Fed.Reg. 17968 (1978) (.quoting H.R.Rep. No. 44, 95th Cong., 1st Sess. 28-29 (1977)).
.See S.Rep. No. 1408, 93d Cong., 2d Sess. (1974) (Conference Report); H.R.Rep. No. 1606, 93d Cong., 2d Sess. (1974) (Conference Report); H.R.Rep. No. 1107, 93d Cong., 2d Sess. (1974).
. The FTC adopted rules of procedure similar to those successfully adopted by the Environmental Protection Agency (EPA) under the Toxic Substances Control Act, 15 U.S.C. § 2605 (1976), which is almost identical to § 18. Compare 15 U.S.C. § 2605(c)(3) with id. § 57a(c). In addition, the FTC modeled the § (D)(2)(e) rule after an analogous Food and Drug Administration (FDA) regulation. Compare 21 C.F.R. § 12.85(a)(2) (1979); 41 Fed.Reg. 51706, 51726 (1976), with 43 Fed.Reg, 17971 (1978).
Appellants are simply wrong in suggesting that, because the EPA allowed notice and comment on its procedural rules establishing bifurcated hearings, 42 Fed.Reg. 20640 (1977); id. at 61259 (to be codified at 40 C.F.R. § 750.1 et seq.), the FTC must do the same here. The APA does not require notice and comment before agency promulgation of procedural rules. 5 U.S.C. § 553(b)(A). In promulgating its hearings rules the EPA expressly characterized the rules as “procedural.” 42 Fed.Reg. at 61260 (explaining why the rules could be effective immediately upon publication). The mere fact that the EPA voluntarily provided interested persons an opportunity to comment that was not mandated by the APA did not change the essential nature of such rules from “procedural” to “substantive.” As Vermont Yankee makes clear, an agency may provide more rule-making procedures than the APA requires, but a court may not order it to do so — even a court that has waited until the rulemaking is concluded and the matter is properly before the court for review. Vermont Yankee Nuclear Power Corp. v. Natural Resources Defense Council, Inc., supra note 4, 435 U.S. at 524-525, 98 S.Ct. 1197.
In addition, if the EPA had been compelled to afford notice and comment on its procedural rules of general applicability, it would not follow that the FTC is compelled to do the same for rules of particular applicability to the children’s advertising rulemaking. This second analysis finds support not only in the Commission’s reserved power to depart from its 1975 rules, 16 C.F.R. § 1.20 (1978), but also in .the FTC Act’s judicial review provisions. The Act directs that a Court of Appeals, in reviewing a final trade regulation rule, must consider whether any Commission “procedural” rules or rulings restricting cross-examination had a prejudicial impact upon participants’ statutory rights. 15 U.S.C. § 57a(e)(3).
. 15 U.S.C. § 57a(c)(l)(B) (emphasis added).
. 43 Fed.Reg. at 17971 (emphasis added).
. Id.
. Brief for appellants at 28 -29 & n.9.
. 16 C.F.R. § 1.18(c) (1979) provides:
(c) Communication to Commissioners and their attorney advisors. Except as otherwise provided in this subpart o[r] by the Commission, after commencement of a trade regulation rule proceeding, no person not employed by the Commission shall communicate, orally or in writing, with any Commissioner or any member of a Commissioner’s personal staff, with respect to the merits of that proceeding. If a prohibited communication does occur, the communication will be placed on the public record on receipt. In the case of an oral communication, the Commissioner or staff member shall place on the public record a memorandum setting forth the contents of such communication and the circumstances thereof. Such communications or memoranda will not be part of the rulemaking record.
. 16 C.F.R. § 4.7(a)-(b) (1979) provides:
§ 4.7 Ex parte communications
(a) Definitions. For purposes of this section, “ex parte communications” means an oral or written communication not on the public record with respect to which reasonable prior notice to all parties is not given, but it shall not include requests for status reports on any matter or proceeding.
(b) Prohibited ex parte communications. While a proceeding is in adjudicative status within the Commission, except to the extent required for the disposition of ex parte matters as authorized by law, (1) no person not employed by the Commission and no employee or agent of the Commission who performs investigative or prosecuting functions in adjudicative proceedings, shall make or knowingly cause to be made to any member of the Commission, or to the Administrative Law Judge, or to any other employee who is or who reasonably may be expected to be involved in the decisional process in the proceeding, an ex parte communication relevant to the merits of that or a factually related proceeding; and (2) no member of the Commission, the Administrative Law Judge, or any other employee who reasonably may be expected to be involved in the decisional process in the proceeding, shall make or knowingly cause to be made to any person not employed by the Commission, or to any employee or agent of the Commission who performs investigative or prosec[u]ting functions in adjudicative proceedings, an ex parte communication relevant to the merits of that or a factually related proceeding.
. Brief for appellants at 39.
. Id. at 34.
. Id. at 31.
. The Commission noted this distinction and explained the rationale for Rule 1.18(c) in a statement addressing post-promulgation comments on the rule, 42 Fed.Reg. 60562 (1977):
The second major category of comments suggested that the scope of the rule be expanded to prohibit Commission staff members who have participated in the rulemaking proceeding from communicating with Commissioners or their personal staffs. The rationale for the suggested change is that allowing staff communications would give an unfair advantage to advocates of the proposed rule. The analogy given is that the rulemaking staff is comparable to complaint counsel in adjudications, who are prohibited from communicating on an ex-parte basis with decisionmakers.
The comparison of rulemaking with adjudication is not appropriate. The distinction in staff roles between adjudication and rule-making has long been recognized. The APA provisions on separation of functions, 5 U.S.C. [§] 554(d), for example, applies [sic] only to adjudicatory proceedings. Similarly, the APA prohibitions of ex parte communications by interested persons outside the agency applies [sic] only to matters required by statute to be determined on the record after opportunity for an agency hearing, 5 U.S.C. (Supp. V) section 557(d), a category which does not include Magnuson-Moss rulemaking. While the staff in an adjudication is engaged in a prosecutorial activity, rulemaking staff are responsible for assisting the Commission in its quasi-legislative role. The rulemaking staff [has] the responsibility of seeing that a complete record is established.
In light of the above considerations, the Commission does not believe that staff communications should be banned. Staff communications serve a positive function, by allowing Commissioners, in reviewing what are often massive records that have not been shaped by a clear-cut adversarial process, to receive assistance from those persons in the Commission who are most familiar with the record. To seek assistance from staff members who have not participated in the rule-making proceeding, as some comments suggest, would result in a misallocation of resources by ignoring the people best-suited to aid the Commission. Accordingly, the Commission has determined not to expand the scope of the rule.
. JA 159-160. See, e. g., Hercules, Inc. v. EPA, 194 U.S.App.D.C. 172, 598 F.2d 91 (D.C.Cir. 1978); Home Box Office, Inc. v. FCC, 185 U.S.App.D.C. 142, 567 F.2d 9 (D.C.Cir.) (per curiam), cert. denied, 434 U.S. 829, 98 S.Ct. 111, 54 L.Ed.2d 89 (1977).
. See 15 U.S.C. § 57a(e)(3) (reviewing court must take due account of the rule of prejudicial error); cf. Home Box Office, Inc. v. FCC, supra note 36, 185 U.S.App.D.C. at 199-200, 567 F.2d at 58-59 (court would examine the significance of undisclosed, external ex parte contacts before rule under review would be invalidated).
. 16 C.F.R. § 1.18(a) (1979).
. Brief for appellants at 50.
. H.R.Rep. No. 1606, supra note 24, at 33 " (emphasis added).
. The rule is not self-enforcing, and I do not now decide whether it might be unlawful as applied in a given fact situation.
. 15 U.S.C. § 49 (1976). The Commission did in fact invoke its subpoena power as the means of enforcing § (D)(2)(e) with respect to several participants in the legislative hearing, including one of the appellants herein. See brief for appellees at 54 n.44.
. The presiding officer is authorized to draw adverse inferences from noncompliance, or to assign no weight to presentations. See 44 Fed. Reg. 3496 (1979); note 2 supra.
. See, e.g., International Union, UAW v. NLRB, 148 U.S.App.D.C. 305, 314-315, 459 F.2d 1329, 1338-1339 (D.C.Cir. 1972); NLRB v. Ship Shape Maintenance Co., 154 U.S.App.D.C. 186, 192, 474 F.2d 434, 440 (D.C.Cir. 1972).
. See note 20 supra.
. See note 3 supra.
. See note 20 supra.
. See 15 U.S.C. § 57a(c)(2); cases cited at note 44 supra.
. See 15 U.S.C. § 57a(c)(l)(B).
. See note 13 supra.
. “[T]he point is that Congress has chosen to leave such questions with the Commission, to which it has given the flexibility to experiment with new ideas as changing conditions require.” Columbia Broadcasting System, Inc. v. Democratic Nat’l Committee, supra note 13, 412 U.S. at 122, 93 S.Ct. at 2096.