WALD, Circuit Judge:
This case raises a difficult question in a troubling and unusual context: whether a district court may intervene in an ongoing administrative adjudicatory proceeding to expand discovery into an alleged pattern of wrongdoing by agency officials that could affect the outcome of the proceeding. The alleged wrongdoing consisted of the destruction of documents of arguable relevance to the administrative proceeding, and [298] prohibited ex parte communications between the hearing officer and enforcement personnel. Because our decision to vacate the district court’s order rests on a peculiar sequence of events, we begin by narrating these events in some detail.
I. THE HISTORY OF THE PROCEEDINGS
A. The Crude Cluster Proceedings
The proceedings before us concern alleged violations by seven major crude oil producers1 of mandatory crude oil pricing regulations2 issued by DOE and its predecessors 3 pursuant to the Emergency Petroleum Allocation Act of 1973 (EPAA).4
In 1977 Congress transferred to the newly created Department of Energy (DOE) the functions then exercised by the FEA and its Administrator.5 Pursuant to § 206 of the Department of Energy Organization Act (the Act), 42 U.S.C. § 7136, the Secretary of Energy delegated to the Economic Regulatory Administration (ERA) the regulation and enforcement functions concerning, inter alia, mandatory petroleum allocation and pricing.6 Soon thereafter the Secretary established within ERA the Office of Special Counsel for Compliance (OSC) and charged it with prosecuting individual enforcement actions.7 OSC was specifically directed “to conduct an accelerated audit, investigation, and enforcement effort with respect to [the 34 major refiners], with the primary mission to complete the audits of at least the largest 15 refiners within 2 years and take appropriate enforcement action.” 8
On May 1,1979, in one of its most significant enforcement actions to date, OSC issued seven proposed remedial orders9 (PROs) alleging that major producers of crude oil were guilty between September 1973 and March 1979 of charging prices 1.7 billion dollars in excess of what the Mandatory Petroleum Price Regulations permitted.10
Under the EPAA regulations allegedly violated, the crude oil producers must
[299] determine the first sale price of crude oil on the basis of the production from a property during a specified base period... . “[Pjroperty” is defined as the right to produce crude oil which arises from a lease or a fee interest.... 11
Each PRO contains allegations that the producers misclassified “properties” from which crude oil was produced.12 In defense, the producers argue that the EPAA regulations, and in particular the definition of “property,” are ambiguous on their face, and have a history of tortuous agency interpretation and application.13 The producers assert that they should not be (indeed, they cannot be) penalized for failing to adhere to regulations whose precise meaning has neither been intelligently defined nor even agreed upon by agency personnel themselves.14
This alleged inherent ambiguity in the basic definition of “property” constitutes the producers’ major defense to the allegations contained in the proposed remedial orders. Therefore, the several crude oil producers, sometimes acting in concert and sometimes separately, have sought extensive discovery before OHA of the agency’s 15 contemporaneous construction of its regulations and of agency documents relating to the issuance of the PROs.16
1. The Two Incidents of Document Destruction 17
The producers sought extensive discovery into two incidents of alleged document destruction that came to their attention in 1979 and 1980. The first incident concerned a file reorganization conducted between August 8 and 15, 1979, by OSC’s Crude Production Audit Division (CPAD) after the producers had filed for discovery of CPAD’s audit files. Neil Tonken, Deputy Solicitor to the Special Counsel in charge of the crude cluster enforcement proceedings, and Leigh Manasevit, an Assistant Solicitor, conducted an internal investigation of this incident immediately after learning of it. Although Tonken, in a letter to the parties informing them of the August document destruction incident,18 concluded that most [300] of the documents destroyed were duplicates, and that those which could not be replaced — buck slips, rough drafts of documents later formalized, newspaper articles and cartoons — were on the whole insignificant, the producers sought discovery into this incident.19 OHA restricted such discovery to a single deposition of the individual with “principal knowledge” of the August document destruction incident, to be conducted by one party only.20
The second clearly more serious incident 'involved the alleged destruction in either late 1978 or early 1979 of an issues paper used by CPAD auditors in detailing and discussing interpretative problems confronting them.21 Tonken and Manasevit learned of this incident from an interview with Ron Rosapep, the CPAD auditor who hád conducted the August file reorganization and the one selected by Tonken to be deposed as having “principal knowledge” of those events. The most damaging version of the second incident of document destruction is recounted in an October 26, 1979 memorandum from Tonken and Manasevit to Special Counsel Paul Bloom. In May 1979, Rosapep heard rumors that an order had been given to destroy all copies of the issues paper, rumors that were corroborated later that month when Rosapep met with Harry Bayne, Chief Counsel of CPAD.
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WALD, Circuit Judge:
This case raises a difficult question in a troubling and unusual context: whether a district court may intervene in an ongoing administrative adjudicatory proceeding to expand discovery into an alleged pattern of wrongdoing by agency officials that could affect the outcome of the proceeding. The alleged wrongdoing consisted of the destruction of documents of arguable relevance to the administrative proceeding, and [298] prohibited ex parte communications between the hearing officer and enforcement personnel. Because our decision to vacate the district court’s order rests on a peculiar sequence of events, we begin by narrating these events in some detail.
I. THE HISTORY OF THE PROCEEDINGS
A. The Crude Cluster Proceedings
The proceedings before us concern alleged violations by seven major crude oil producers1 of mandatory crude oil pricing regulations2 issued by DOE and its predecessors 3 pursuant to the Emergency Petroleum Allocation Act of 1973 (EPAA).4
In 1977 Congress transferred to the newly created Department of Energy (DOE) the functions then exercised by the FEA and its Administrator.5 Pursuant to § 206 of the Department of Energy Organization Act (the Act), 42 U.S.C. § 7136, the Secretary of Energy delegated to the Economic Regulatory Administration (ERA) the regulation and enforcement functions concerning, inter alia, mandatory petroleum allocation and pricing.6 Soon thereafter the Secretary established within ERA the Office of Special Counsel for Compliance (OSC) and charged it with prosecuting individual enforcement actions.7 OSC was specifically directed “to conduct an accelerated audit, investigation, and enforcement effort with respect to [the 34 major refiners], with the primary mission to complete the audits of at least the largest 15 refiners within 2 years and take appropriate enforcement action.” 8
On May 1,1979, in one of its most significant enforcement actions to date, OSC issued seven proposed remedial orders9 (PROs) alleging that major producers of crude oil were guilty between September 1973 and March 1979 of charging prices 1.7 billion dollars in excess of what the Mandatory Petroleum Price Regulations permitted.10
Under the EPAA regulations allegedly violated, the crude oil producers must
[299] determine the first sale price of crude oil on the basis of the production from a property during a specified base period... . “[Pjroperty” is defined as the right to produce crude oil which arises from a lease or a fee interest.... 11
Each PRO contains allegations that the producers misclassified “properties” from which crude oil was produced.12 In defense, the producers argue that the EPAA regulations, and in particular the definition of “property,” are ambiguous on their face, and have a history of tortuous agency interpretation and application.13 The producers assert that they should not be (indeed, they cannot be) penalized for failing to adhere to regulations whose precise meaning has neither been intelligently defined nor even agreed upon by agency personnel themselves.14
This alleged inherent ambiguity in the basic definition of “property” constitutes the producers’ major defense to the allegations contained in the proposed remedial orders. Therefore, the several crude oil producers, sometimes acting in concert and sometimes separately, have sought extensive discovery before OHA of the agency’s 15 contemporaneous construction of its regulations and of agency documents relating to the issuance of the PROs.16
1. The Two Incidents of Document Destruction 17
The producers sought extensive discovery into two incidents of alleged document destruction that came to their attention in 1979 and 1980. The first incident concerned a file reorganization conducted between August 8 and 15, 1979, by OSC’s Crude Production Audit Division (CPAD) after the producers had filed for discovery of CPAD’s audit files. Neil Tonken, Deputy Solicitor to the Special Counsel in charge of the crude cluster enforcement proceedings, and Leigh Manasevit, an Assistant Solicitor, conducted an internal investigation of this incident immediately after learning of it. Although Tonken, in a letter to the parties informing them of the August document destruction incident,18 concluded that most [300] of the documents destroyed were duplicates, and that those which could not be replaced — buck slips, rough drafts of documents later formalized, newspaper articles and cartoons — were on the whole insignificant, the producers sought discovery into this incident.19 OHA restricted such discovery to a single deposition of the individual with “principal knowledge” of the August document destruction incident, to be conducted by one party only.20
The second clearly more serious incident 'involved the alleged destruction in either late 1978 or early 1979 of an issues paper used by CPAD auditors in detailing and discussing interpretative problems confronting them.21 Tonken and Manasevit learned of this incident from an interview with Ron Rosapep, the CPAD auditor who hád conducted the August file reorganization and the one selected by Tonken to be deposed as having “principal knowledge” of those events. The most damaging version of the second incident of document destruction is recounted in an October 26, 1979 memorandum from Tonken and Manasevit to Special Counsel Paul Bloom. In May 1979, Rosapep heard rumors that an order had been given to destroy all copies of the issues paper, rumors that were corroborated later that month when Rosapep met with Harry Bayne, Chief Counsel of CPAD.
Rosapep asked if he could keep his copy at his home, and Bayne replied that he could not because they would go into his home and get it. Rosapep told Manasevit that in this statement Bayne was referring to the crude oil producers’ acquiring the position paper through discovery and that it was clear to Rosapep that Bayne did not want that to occur. Rosapep advised Manasevit that he stated to Bayne that the effort to destroy the document would not be successful because there were too many copies of it in existence and it would be impossible to locate them all. Bayne replied that, regardless of this problem, Carl Corrallo had ordered that the documents were to be destroyed. Rosapep did not destroy his copy, however, but instead went to John Wesner [Deputy Director of CPAD], and asked whether, in fact, he was required to destroy it. According to Rosapep, Wesner said that that had been the order but that Dean Cooper, of the Solicitor’s Office, had told him it was no longer operative.22
In the weeks that followed the disclosure of these events, three in-house investigations were conducted within DOE. However, the producers were not informed of the issues paper incident, as they had been informed of the August incident.
Tonken and Manasevit conducted the first of these internal investigations. The Solicitor, Carl Corrallo, denied to both Manasevit and Tonken ever giving such an order to destroy the issues paper, but conceded that he may have directed the participants in a December 1978 meeting concerning the issues paper to destroy their copies.23 In their October 26 memorandum to [301] Paul Bloom, Tonken and Manasevit concluded that “the entire matter of document destruction discussed herein must be referred to the Department of Justice for evaluation and appropriate action.”24
Special Counsel Paul Bloom then proceeded to conduct an independent investigation of these two incidents, interviewing Rosa-pep, Corrallo and Jimmy Mayberry, the Director of CPAD.25 Bloom met with two attorneys of the Public Integrity Division of the Justice Department, who, when apprised of the facts as told by Bloom, declined to accept the matter for investigation of possible misconduct.26 Bloom also talked about these matters to the DOE Assistant General Counsel for Standards of Conduct.27 In a lengthy memorandum dated January 16, 1980, Bloom disclosed to the Director of OHA, Melvin Goldstein, the results of his in-house investigation.28 He concluded there had been no order to destroy copies of the issues paper. In fact, many copies were and are still in existence. Instead, Corrallo had given only an order to “limit distribution” of the issues paper, so as to prevent the producers from successfully relying upon “erroneous and unauthorized interpretative advice from CPAD auditors,” as they had done in the past.29 Bloom contended that the questions raised in the Tonken memorandum were not relevant to the crude cluster proceedings before OHA, that the whole matter has been “fully and independently” examined and found to be “totally innocuous,” and that “OHA should accord no consideration whatever to the materials privately presented to you by Tonken and Manasevit.”30
Two months after Special Counsel Bloom was informed by the Tonken memorandum of the two separate incidents of document destruction, Tonken and Manasevit notified the Inspector General of DOE of these matters and urged a separate, additional investigation and evaluation.31 Director Melvin Goldstein in a letter to the Inspector General made a similar request.32
After a six-week investigation into these incidents, the Inspector General issued a report on March 17.33 The Inspector General’s investigation found that “no documents were improperly destroyed by the Office of Special Counsel; but . . . found inadequate the Office of Special Counsel’s response to internal rumors of such document destruction.”34 Concerning the August 1979 Dal[302] las file reorganization, the Report found that only “Division files” were reorganized by CP AD auditors. No audit or case files— the files used by OSC in its enforcement actions — were destroyed.35
Regarding the issues paper incident, the Report stated that at the end of a policy meeting in February 1979,
[There] was a suggestion by the Solicitor to limit distribution of copies of the papers within the staff of the Office of Special Counsel to prevent misuse of the papers [by OSC personnel].
We also found that although this guidance was intended solely to limit distribution of copies of the discussion papers and involved no intent to destroy copies improperly, some copies of the papers were destroyed. This happened in February, 1979, and in our view, resulted from misconstruction by the Chief Counsel of [CPAD] [Harry Bayne] of the guidance on limiting distribution of copies that had been .previously suggested by the Solicitor to OSC. The Chief Counsel informed us that he ordered his staff to destroy their copies of the papers in an attempt to accomplish the purpose of the Solicitor’s guidance. . . ,36
The Report noted that “some copies of the discussion papers cannot be accounted for,”37 and “the original does not exist in its entirety.” Its absence, the Report stated, “could not be accounted for.”38 Finally, the Report concluded that “no order to destroy the papers was given by the Solicitor [Carl Corrallo] at any time.” 39
The Inspector General also found OSC’s internal investigations “were not extensive and thorough enough to lay to rest conclusively the rumors about possible document destruction.”40 The Report criticized both Tonken and Manasevit and Bloom for failing to promptly notify the Inspector General.41
We found that the rumors about possibly improper document destruction remained a festering controversy within the Office of Special Counsel because the internal investigations that were done lacked credibility with many of the attorneys working on the Proposed Remedial Order cases. Moreover, these attorneys felt they were caught in an ethical dilemma because they were being asked to prepare discovery responses to questions about possible document destruction at a time when they were not confident that they were receiving accurate information about what had occurred.42
2. Ex Parte Communications
While remedial order proceedings are pending before OHA, “[n]o person who is not employed or otherwise supervised by [OHA] shall submit ex parte communications to the Director or any other person employed or otherwise supervised by [OHA] with respect to any matter involved in Remedial Order . . . proceedings.”43 “[E]x parte communications” are defined to include “oral or written communications relative to the merits of a [PRO] . . . proceeding pending before [OHA].” 44
If any communication occurs that violates the provisions of this section [OHA] shall promptly make the substance of the communication available to the public and serve a copy of a written communication or a memorandum summarizing an oral [303] communication to all participants in the affected proceeding.45
In handling the producers’ discovery requests concerning the incidents of document destruction, and in conducting their investigations into these events, various OSC personnel engaged in numerous ex parte contacts with the Director of OHA. Paul Bloom’s January 16 memorandum to Melvin Goldstein, the January 4 meeting of Tonken and Manasevit with Goldstein, and Goldstein’s memorandum of the same date all were arguably in contravention of the prohibition contained in § 208.199F,46 yet the contents of the written ex parte memorandum that were exchanged were not released until March 28.47
3. The Producers’ Attempts to Obtain Meaningful Discovery
The producers did not immediately learn of these incidents of document destruction and were largely unaware of the ex parte communications until twelve Assistant Solicitors within OSC moved before OHA to “clarify the record” to include the various ex parte memoranda concerning these events.48 The producers filed over twenty discovery requests before OHA, seeking extensive deposition and document discovery into both of these incidents49 and at one point requesting the Director of OHA to recuse himself from adjudicating the crude cluster proceedings.50 OHA held several hearings on these discovery requests, but did not rule on them for several months. By the time OHA issued its decision concerning the discovery into document destruction and ex parte communications,51 Gulf and ARCO had already filed a complaint in United States District Court. The sum total of the discovery OHA allowed consisted of two depositions concerning the August file reorganization and four interrogatories, designed by OHA, to be submitted to twenty-four named OSC attorneys and auditors.52
B. Proceedings in the Courts
On March 27, 1980, Gulf and ARCO filed suit in district court for declaratory and [304] injunctive relief.53 On May 19, plaintiffs filed an amended and supplemental complaint to take into account the proceedings held by OHA since the date of their original complaint and the release during the interim of documents pertaining to plaintiffs’ original allegations.54
In their amended complaint, plaintiffs requested the district court to enjoin the administrative proceedings and require DOE to prosecute the crude cluster proceedings in district court. As an alternative, plaintiffs sought an order prohibiting the Director of OHA from conducting the proceedings and ordering the Secretary of Energy to appoint an independent AU to adjudicate the proceedings, or at least the issues of document destruction and ex parte communications. Plaintiffs also sought document and deposition discovery to be conducted by the district court into the matters of document destruction of ex parte contacts, an order directing the defendants to preserve all documents that may be relevant to the crude cluster proceedings, and a declaration that the OHA Director’s action's in receiving, soliciting and withholding ex parte communications were in violation of DOE regulations and violated the producers’ due process rights. Plaintiffs asked the district court to retain jurisdiction over the proceedings to monitor the compliance with any order the court should issue.55
The defendants moved for a protective order deferring discovery and moved to dismiss the complaint for failure to exhaust administrative remedies and because the case was not yet ripe for review.56 The plaintiffs opposed dismissal, arguing that immediate judicial intervention of some sort was necessary to preserve their right to a fair hearing before OHA and ultimately before FERC. The court initially met this argument with skepticism.57 However, the court acknowledged that this case, unlike others relied on by defendants, involved more than mere allegations of document destruction and ex parte communications.58
On June 13, the court issued an order granting" defendants’ motion for a protective order and also requiring defendants to preserve in one location all documents arguably related to the crude cluster proceedings, pending disposition by the court of the motion to dismiss.59
The court on July 8 granted in part the relief requested by the producers. The court initially noted its reluctance to interfere with the ongoing crude cluster proceedings, and added that the “underlying facts have not been sufficiently developed to enable the Court to resolve the dispute even if it should intervene.” 60 However, it stated, “[Tjhere is need at this time to put these issues to rest.” 61 The court denied defendants’ motion to dismiss, stating that
[305] Serious issues of fairness and due process are involved, however, and the Court believes it has a duty to assure at the very least that plaintiffs are not wholly denied an opportunity to develop facts supporting their claims.62
The court noted especially that “plaintiffs have no opportunity to test the issue of recusal or the proper scope of discovery until final consideration of the entire record on administrative appeal to [FERC] at the conclusion of all of the proceedings,” an estimated wait of five years.63 Therefore, the court directed the Secretary of Energy to appoint an independent ALJ “for the sole purpose of supervising such further document and deposition discovery as the [ALJ] determines is appropriate and reasonable to develop fully all facts concerning ex parte contacts with the hearing officer and any destruction of relevant documents by agency personnel. ...” 64
Defendants filed an appeal in the Temporary Emergency Court of Appeals (TECA). The district court granted a stay pending reconsideration 65 but ultimately denied reconsideration, although defendants argued that the intervening resignation of Melvin Goldstein as Director of OHA mooted the case, since the new hearing examiner was free to reconsider all previous OHA discovery rulings. The court saw no reason to believe that the departure of Goldstein brought DOE any closer to compliance with his order to develop an adequate record on .the two issues of document destruction and ex parte communications. All OHA discovery rulings are made by a panel of three members, and Goldstein’s successor, George Breznay, had been a non-dissenting member in all prior rulings in the crude cluster proceedings.66 In its denial of reconsideration, the court removed any doubt that further judicial relief could be anticipated (including the possibility of direct supervision over the agency proceedings): it was repeatedly and emphatically stated that the sole purpose of the court’s order was the preservation of an adequate administrative record on the alleged destruction of documents and ex parte comments.67
Defendants sought and obtained from TECA a stay pending appeal and filed a protective appeal in this court September 11, 1980.68 TECA eventually dismissed the appeal for lack of jurisdiction 69 and a mo[306] tions panel of this court granted a stay pending appeal and sua sponte expedited this case.70
II. ANALYSIS
Appellants argue that the district court had no jurisdiction to entertain a suit to [307] issue its July 8 order because the agency proceeding was still ongoing, and judicial intervention in an ongoing proceeding is barred by the twin doctrines of exhaustion and ripeness. Appellants urge that the language and background of section 503 as well as the regulations promulgated pursuant to it require that appellees pursue their cause within the agency until a final order is approved or disapproved by FERC — a course estimated to take several years — before any kind of judicial relief is authorized. Appellants also argue lack of ripeness since it is basically the limited discovery rulings and failure of the OHA director to recuse himself that are being challenged. These interlocutory rulings are not final agency actions, and any deleterious effect they may have on the proceeding could be washed out by FERC’s ultimate decision to approve or not to approve a remedial order.
Appellees’ answer to both claims is that although exhaustion and ripeness are normally predicates for judicial review, the facts here make out a highly compelling case for earlier intervention. The proceeding is not expected to end for five years. A delay of that length will irreparably impair the producers’ attempt to develop their major defense. Moreover, they claim, years hence it will be impossible to reconstruct the proceeding to support their allegations of basic structural defects and infirmities. Thus, appellants argue, delay will cause them irremediable injury by depriving them of substantial procedural rights. They also point to prior cases in which courts have allowed limited exceptions to traditional finality and ripeness criteria to protect litigants from “structural flaws” and “fundamental infirmities” in ongoing agency proceedings. In such cases courts have found judicious judicial intercession essential to ensure that the parties will eventually have an adequate remedy at law when the agency action is finally complete and ready for fullscale judicial review.
Appellants counter that if such intervention is ever necessary it must be limited to those situations where the court makes findings that actual wrongdoing has taken place, something it did not do here. And, appellants add, even conceding that some of the agency personnel’s conduct did violate its own regulations, circumstances have sufficiently changed since the court’s controversial order was issued to require its vacation now in light of those changed circumstances.
We conclude that the district court was justified on the basis of the evidence presented to it in intervening to assure that a full factual record of any misconduct would be preserved for use by the agency itself in the ongoing proceedings as well as for any later judicial review of that action. Wé believe the district court accurately appraised the situation and acted in an appropriately limited way to protect the litigants’ rights to a fair proceeding. However, we also find that subsequent events have sufficiently reduced the threat of substantial loss of those rights so that intervention by the court is no longer needed. Because of those changed circumstances, we vacate the court’s order. Since in our view these new developments do not moot the controversy but rather alter our perception of the need for judicial intervention, and in view of the recurrent and varied situations in which we are presented with appeals from ongoing agency actions, we have decided to explain the reasons why we think the district court’s unusual action in this case was originally justified.
A. The Trial Court’s Order and the Exhaustion Requirement71
The Department of Energy Organization Act does not explicitly require ex[308] haustion as a jurisdictional prerequisite to judicial review. Nevertheless, appellants argue that an exhaustion requirement is implicit in, and necessary to, the administrative scheme set up in § 503 to handle enforcement of remedial orders. Section 503 provides an elaborate administrative process to challenge remedial orders before permitting judicial review of those orders. A recipient of a remedial order issued by OHA must appeal to FERC within 30 days or forfeit any and all other administrative and judicial review.72 Only after the decision by FERC may a recipient challenge in district court the remedial order as finally promulgated by FERC (not OSC, not OHA, and not the Commission’s ALJ). Furthermore, a regulation promulgated by the Secretary under the Act73 expressly requires that; “Any order issued by the Office of Hearings and Appeals with respect to discovery shall be subject to further administrative review or appeal only upon issuance of a final remedial order.” 74 The administrative orders centrally involved in plaintiffs’ challenge in the district court consist of repeated denials of discovery into the document destruction and ex parte contacts incidents and the refusal of the Director of OHA to recuse himself from the case. Although we do not read section 503 itself as denying judicial review in all circumstances of any agency action that precedes a remedial order,75 DOE’s regulation certainly an[309] ticipates that discovery challenges will not be brought to court unless and until FERC issues a final remedial order. Indeed such a requirement is entirely reasonable in the vast majority of cases.
The time-honored purposes of exhaustion — to allow an agency to make a record, apply its expertise, and correct errors in its own processes as it goes along76 — do not seem particularly well served here where the district court was dealing with an agency proceeding in which it had reason to believe something may have gone fundamentally awry with the way in which the proceeding itself was being conducted, something that transcended dubious or even patently erroneous legal rulings. The statutory scheme of § 503 and the regulations promulgated thereunder may make for efficient management of 99 percent of proceedings challenging discovery rulings, but they do not necessarily prove adequate for the aberrational one percent that involves significant allegations and not insubstantial evidence of document destruction. An inflexible adherence to normal exhaustion requirements in such a case might — if the allegations were substantiated — perpetuate rather than prevent injustice.
B. Ripeness
Appellants also argue that the issues here are not “ripe” for review. The Supreme Court stated in Abbott Laboratories v. Gardner, 387 U.S. 136, 87 S.Ct. 1507, 18 L.Ed.2d 681 (1967):
[310] [T]he basic rationale [of the ripeness doctrine] 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 formalized and its effects felt in a concrete way by the challenging parties. The problem is best seen in a twofold aspect requiring us to evaluate both the fitness of the issues for judicial decision and the hardship to the parties of withholding court consideration