Opinion for the court filed by Circuit Judge BUCKLEY.
Three national electric utility associations and seventy-three individual power companies petition for review of the Environmental Protection Agency’s interpretation of section 3004® of the Resource Conservation and Recovery Act, a provision that governs the storage of hazardous wastes. The EPA’s interpretation renders it unlawful to store wastes for indefinite periods pending the development of adequate treatment techniques or disposal capacity. Petitioners contend that this interpretation is both inconsistent with the statute and unreasonable as applied to generators of wastes containing both hazardous and radioactive components, for which there are currently few lаwful treatment or disposal options. Because we find that the EPA’s interpretation is not only permissible, but is in fact mandated by the terms of the statute, we deny the petition.
I. BACKGROUND
The Resource Conservation and Recovery Act of 1976 (“RCRA”) establishes a comprehensive “cradle-to-grave” scheme for regulating hazardous wastes. As amended by the Hazardous and Solid Waste Amendments of 1984 (“HSWA”), the centerpiece of RCRA is an ambitious set of land disposal restrictions (“LDRs”). The LDRs prohibit land disposal of particular wastes as of specified dates unless-such disposal is carried out in accordance with regulations issued by the EPA.
See generally Chemical Waste Management, Inc. v. EPA
promulgate regulations specifying those levels or methods of treatment, if any, which substantially diminish the toxicity of the waste or substantially reduce the likelihood of migration of hazardous constituents from the waste so that short-term and *329 long-term threats to human health and the environment are minimized.
Id. § 6924(m)(l).
The provision of RCRA at issue here, section 3004(j), limits the storage of hazardous wastes. It provides:
In the case of any hazardous waste which is prohibited from one or more methods of land disposal under this section (or under regulations promulgated by the Administrator under any provision of this section) the storage of such hazardous waste is prohibited unless such storage is solely for the purpose of the accumulation of such quantities of hazardous waste as are necessary to facilitate proper recovery, treatment or disposal.
Id.
§ 6924(j). Congress enacted this section because it “believed that permitting storage of large quantities of waste as a means of forestalling required treatment would involve health threats equally serious to those posed by land disposal, and therefore opted in large part for а ‘treat as you go’ regulatory regime.”
Hazardous Waste Treatment Council v. EPA
At issue in the present case is the application of section 3004(j) and the EPA’s implementing regulations to “mixed wastes.” Mixed wastes are wastes that contain both a hazardous waste component regulated under RCRA and a radioactive waste component regulated under the Atomic Energy Act (“AEA”).
See State Authorization To Regulate the Hazardous Components of Radioactive Mixed Wastes Under the Resource Conservation and Recovery Act,
51 Fed.Reg. 24,504 (1986) (announcing the EPA’s determination “that wastes containing both hazardous waste and radioactive waste are subject to the RCRA regulation”);
New Mexico v. Watkins,
The EPA issued regulations to implement section 3004(j) in 1986. See Hazardous Waste Management System; Land Disposal Restrictions, 51 Fed.Reg. 40,572, 40,579, 40,-642-43 (1986). Reiterating the statutory language, the regulations provided that generators were permitted to store hazardous wastes subject to the LDRs in “tanks or containers on-site” if such storage was “solely for the purpose of the accumulation of such quantities of hazardous waste as necessary to facilitate proper recovery, treatment, or disposal....” 40 C.F.R. § 268.50(a)(1) (1992). The regulations also established a burden-shifting scheme for determining when storage would be viewed as “solely for the purpose of the accumulation of such quantities of hazardous waste as necessary to facilitate proper recovery, treatment, or disposal.” Specifically, the regulations provided:
(b) An owner/operator of a treatment, storage or disposal facility may store such wastes for up to one year unless the Agency can demonstrate that such storage was not solely for the purpose of accumulation of such quantities of hazardous waste as are necessary to facilitate proper recovery, treatment, or disposal.
(c) A[n] owner/operator of a treatment, storage or disposal facility may store such wastes beyond one year; however, the owner/operator bears the burden of proving that such storage was solely for the purpose of accumulation of such quantities of hazardous waste as are necessary to facilitate proper recovery, treatment, or disposal.
Id.
§ 268.50(b), (c);
see also HWTC III,
As part of its November 22,1989, proposed rule establishing disposal and treatment standards for certain wastes, known as “Third Third” wastes because they fell into the last of three groups of wastes to be *330 regulated under the LDR program, the EPA sought comments on its existing approach and possible alternatives for implementing section 3004(j). See Land Disposal Restrictions for Third Scheduled Wastes, 54 Fed. Reg. 45,372, 48,496 (1989). At the outset, the EPA noted that “[t]he intent of RCRA section 3004(j) and 40 C.F.R. § 268.50 is to prohibit use of long-term storage to circumvent treatment requirements imposed by the LDRs.” Id. The EPA then observed that, although the existing regulations did not establish a “firm time limit” for storage of hazardous wastes, they had produced “concerns that some legitimate storage technically may be prohibited.... ” Id. Thus, the EPA announced that it was
... requesting comment on alternative approaches for prohibiting storage. Under one alternative, where рrohibited wastes are stored in tanks or containers pending the utilization of proper treatment, recovery or disposal capacity, the storage would not be prohibited. Two examples of allowable storage under this alternative approach are provided below:
(1) Where a generator is storing wastes in tanks for six weeks because of a backup at an incinerator which the generator has a contract to use; and
(2) Where a treatment facility treats a prohibited waste to a level that does not meet the treatment standard and then stores the waste before treating it again to meet the standard.
EPA is soliciting views on these issues today because a literal reading of the statute wоuld likely condemn such storage as unlawful. This is because the statutory language and 40 CFR § 268.50 draw a connection between the amount of waste being stored and the purpose of facilitating proper management. Virtually no storage except that undertaken to promote underutilized proper management capacity would satisfy this literal reading of the statute.
Accordingly, EPA is soliciting comment on the alternative interpretation (i.e. that the storage prohibition only applies if storage is surrogate disposal, for example due to failure to utilize existing treatment capacity, or if storage is otherwise undertaken for purposes of evading a land disposal prohibition). Commentators should also address other potential situations where they believe that an overly literal reading of section 3004(j) may have consequences they believe Congress did not intend.
Id.
In response to this solicitation, the EPA received a number of comments supporting alternative approaches to implementing section 3004Q). Nevertheless, in the preamble to the final Third Third rule issued on June 1, 1990, the EPA announced that it had decided not to pursue a “definitive reinterpretation” of the storage provision. Land Disposal Restrictions for Third Third Scheduled Wastes, 55 Fed.Reg. 22,520, 22,534 (1990). The EPA emphasized that it
continues to believe ... that the statutory prohibition was designed to prevent the use of storage as a means of avoiding a treatment standard, and will continue to enforce the stоrage prohibition with that intention in mind.
Id. It concluded, however, that revising the regulation would result in'a rule that would “be very difficult to implement and enforce.” Id. at 22,672. Despite its decision not to undertake a comprehensive revision of the regulation, the EPA did note the special problems faced by generators of mixed wastes. See id. at 22,534, 22,673. The EPA stated that it would “further evaluate the legal, policy, and factual issues relevant to this matter” and “issue its policy on the mixed waste storage issue during the next 90 days.” Id. at 22,673.
More than a year later, on August 29, 1991, the EPA issued a statement of its enforcement policy with respect to the storage of mixed wastes. See Policy on Enforcement of RCRA Section SOOJp(J) Storage Prohibition at Facilities Generating Mixed Radioaсtive/Hazardous Wastes, 56 Fed.Reg. 42,730 (1991) (“Enforcement Policy Statement”). In the Enforcement Policy Statement, the EPA noted that it had “previously concluded that storage of a waste pending development of treatment capacity does not *331 constitute storage to accumulate sufficient quantities to facilitate proper treatment or disposal.” Id. at 42,732. As a result, the Agency recognized that “[gjenerators and storers of [mixed] wastes may find it impossible to comply with the section 3004(j) storage prohibition” because of a lack of available treatment and disposal options. Id. at 42,-731; see also id. at 42,733 (“Without available treatment or disposal capacity for many mixed wastes, generators of these wastes are faced with little сhoice but to violate the LDR storage prohibition.... ”). The EPA announced, however, that for those mixed waste generators who “are operating their storage facilities in an environmentally responsible manner,” violations of section 3004(j) would be considered “reduced priorities among EPA’s potential civil enforcement actions.” Id. at 42,731. The EPA noted that this enforcement policy would terminate on December 31, 1993, or at an earlier date “[i]f sufficient, lawful treatment capacity becomes available.” Id.
II. Discussion
Petitioners contend that the EPA’s interpretation of the storage provision, as articulated in its Enforcement Policy Statement, is both inconsistent with the statute and unreasonable. Before reaching the merits, however, it is necessary to consider several threshold issues raised by the EPA, which seeks dismissal of the petition for review.
A. Jurisdiction and Justiciability
1. Timeliness of the Petition for Review
The EPA argues that this court is without jurisdiction to consider the petition for review because it was not timely filed. Under section 7006(a)(1) of RCRA,
a petition for review of action of the Administrator in promulgating any regulation, or requirement under this chapter or denying any petition for the promulgation, amendment or repeal of any regulation under this chapter ... shall be filed within ninety days from the date of such promulgation or denial, or after such date if such petition for review is based solely on grounds arising after such ninetieth day....
42 U.S.C. § 6976(a)(1). Here, the petition for review was filed within ninety days of the EPA’s Enforcement Policy Statement. The EPA contends, howevеr, that petitioners are effectively challenging the preexisting section 3004(j) regulations, provisions that were initially promulgated in 1986 and for which the ninety-day filing period has long since expired.
Filing periods such as the ninety-day window established by section 7006(a)(1) are “jurisdictional in nature, and may not be enlarged or altered by the courts.”
Natural Resources Defense Council v. NRC,
Similarly, in
Ohio v. EPA,
the EPA published proposed rules in 1985 regarding private claims against the Superfund.
See
We find that the “reopener doctrine” articulated in cases such as
American Railroads
and
Ohio v. EPA
plainly governs the present dispute, and hence that the petition was timely filed. By soliciting comments on the existing section 3004(j) regulations and advancing a possible “alternative approach” in the proposed Third Third rule, the EPA clearly provided the type of “opportunity for renewed comment and objection” that suffices to restart the statutory period for seeking review. Indeed, petitioners are in a considerably stronger position than the petitioners in both
American Railroads
and
Ohio v. EPA
In neither of those cases did the agency explicitly propose reconsideration of or request comments on the precise regulatory provision challenged in the petition for review.
See Public Citizen v. NRC,
In an attempt to avoid the conclusion that the reopener doctrine applies, the EPA observes that it did not republish its section 3004(j) regulations, nor did it propose specific language to replace or modify them. That such measures are not required to restart the statutory review period, however, is clear from
American Railroads.
The EPA also cites this court’s decision in
American Iron & Steel Institute v. EPA,
The EPA’s final argument is that even if the request for comment in the proposed Third Third rule did reopen the issue, the ninety-day period for seeking review began to run from the dаte of the final Third Third rule announcing that the EPA would retain its original interpretation of section 3004(j), rather than from the date of the Enforcement Policy Statement. We disagree. In the final rule, the EPA stated that it would “further evaluate the legal, policy, and factual issues” relating to the storage of mixed wastes, 55 Fed.Reg. at 22,673, and that it expected “to issue its policy on the mixed waste storage issue during the next 90 days.”
Id.
These statements clearly indicated that the EPA had not yet reached a final position with respect to the storage of mixed wastes. Moreover, the Agency admitted as much in the Enforcement Policy Statement by commenting that “[i]n the final rule ... the Agency ... affirmed the strict interpretation of the storage prohibition, while
leaving open
the possibility of dеveloping another position on the mixed waste storage issue.”
*333 2. Reviewability of the EPA’s Enforcement Policy
The EPA next argues that its Enforcement Policy Statement is immune from review under
Heckler v. Chaney,
We find the EPA’s
Heckler
argument unconvincing. Petitioners are not challenging the manner in which the EPA has chosen to exercise its enforcement discretion. Indeed, as petitioners point out, “[i]f [they] agreed with the Agency’s interpretation of section 3004(j), [they] would obviously
support
the enforcement policy because it places a low priority on enforcing the storage prohibition against generators of mixed waste.... ” Petitioners’ Reply Br. at 6 n. 3 (emphasis in original). Instead, petitioners are challenging the EPA’s interpretation of section 3004(j) and its implementing regulations. Under the EPA’s interpretation, it is unlawful to store mixed wastes indefinitely pending the development of adequate treаtment capacity. Clearly, this interpretation has to do with the substantive requirements of the law; it is not the type of discretionary judgment concerning the allocation of enforcement resources that
Heckler
shields from judicial review.
Cf. International Union, United Auto., Aerospace & Agrie. Implement Workers of Am. v. Brock,
3. Ripeness
The final argument offered by the EPA to bar consideration of the merits is that the case is not ripe for review. Under the two-pronged test developed in
Abbott Laboratories v. Gardner,
Turning first to the “fitness” prong, we find it dispositive that Congress has affirmatively expressed a preference for prompt review of RCRA regulations by establishing a ninety-day window for filing challenges.
See Mountain States Tel. & Tel. Co. v. FCC,
To be sure, this court has indicated that a challenge filed within the statutory period might not be considered “fit for judicial decision” when there are clear and significant institutional benefits to be derived from postponing review.
See, e.g., Mountain States,
First, the petition for review presents a “purely legal question.”
See, e.g., Eagle-Picher,
Second, the EPA’s position on the application of section 3004Q') to the storage of mixed wastes clearly “represents its final word on the subject, i.e. its policy has crystallized.”
American Railroads,
Third, the court’s deliberations are unlikely to be aided by application of the EPA’s interpretation to a particular set of facts.
Cf. Toilet Goods Ass’n, Inc. v. Gardner,
Finally, the present case cannot be characterized as one in which “resolution of the dispute is likely to prove unnecessary” if the court elects to defer review.
State Farm Mut. Auto. Ins. Co. v. Dole,
Having concluded that the petition for review was filed within the ninety-day period and that there are no institutional interests weighing against review, it is unnecessary to evaluate thе second prong of the
Abbott Laboratories
ripeness test, the hardship the parties would experience if review were withheld.
See National Recycling Coalition,
B. The Merits
Because the EPA has been entrusted -to administer RCRA, review of the EPA’s interpretation of section 3004(j) is governed by the familiar two-step test articulated in
Chevron U.S.A. Inc. v. Natural Resources Defense Council, Inc.,
In the рresent case, we agree with the EPA that Congress has spoken to the precise question at issue, and that section 3004(j) *335 cannot be read to sanction the indefinite storage of potentially unlimited amounts of mixed wastes while treatment methods or disposal capacity is being developed. Turning first to the statutory language, section 3004(j) provides that storage of hazardous wastes covered by the LDRs is prohibited “unless such storage is solely for the purpose of the accumulation of such quantities of hazardous waste as are necessary to facilitate proper recovery, treatment or disposal.” 42 U.S.C. § 6924(j). Petitioners argue that this language supports their position by claiming that “when there is no capacity available to recover, treat, or dispose of an LDR waste (as in the case of mixed waste), the only means available to ‘facilitate proper recovery, treatment or disposal’ is to accumulate and store the waste until qualified treatment or disposal capacity becomes available.” Petitioners’ Br. at 29 (emphasis in original).
The problem with this interpretation is that it effectively reads fifteen words — “solely for the purpose of the accumulation of such quantities of hazardous waste as are”— out of section 3004(j).
Cf. Mountain States Tel. & Tel. Co. v. Pueblo of Santa Ana,
To the extent that the statutory language leaves any doubt, it evaporates when one considers the “design of the statute as a whole.”
K Mart,
More broadly, the EPA’s interpretation of section 3004(j) is consistent with RCRA’s status as a highly prescriptive, technology-forcing statute. As amended in 1984 by the HSWA, RCRA was clearly intended to provide draconian incentives — such as the prohibition of all forms of land disposal for specified wastes — for the rapid development of adequate treatment and disposal capacity. These incentives would be significantly diminished to the extent that generators could rely on the possibility of storing their wastes indefinitely in the event that capacity was not developed in a timely fashion. Indeed, we find it difficult to imagine that Congress would leave such a glaring loophole in the system of incentives it created to promote the development of new treatment and disposal technologies.
Not surprisingly, petitioners characterize RCRA’s purpose in a different fashion. Specifically, they сontend that the primary goal of the statute is to prevent land disposal of untreated wastes. They then argue that storage of mixed wastes pending the development of treatment capacity furthers this goal by ensuring that such wastes will eventually be treated prior to disposal. This argument, however, is flawed by petitioners’ incomplete characterization of the statutory purpose. To be sure, Congress did intend to minimize the land disposal of untreated wastes,
see
42 U.S.C. § 6902(a)(6), but it sought to accomplish this objective within the context of a
*336
“ ‘treat as you go’ regulatory regime,”
HWTC III,
Petitioners make several other arguments to support their position that section 3004(j) authorizes the indefinite storage of mixed wаstes, or at the very least, that the statute is ambiguous. Most prominently, petitioners stress that the EPA’s interpretation of section 3004(j) imposes requirements that are impossible for mixed waste generators to meet. According to petitioners, even if generators were to cease their operations entirely — an action that would entail massive disruption of the national economy — they would remain in violation with respect to mixed wastes that have already been generated and wastes that would be produced during the shutdown process. Petitioners contend that statutory constructions yielding such “absurd” or “impossible” results are to be avoided.
There are two responses to petitioners’ “impossibility” argument. As an initial matter, thе impossibility of compliance with section 3004(j) emerges only if one adopts petitioners’ ex post perspective on the statute. That is, petitioners look only at the situation as it stands currently, after the relevant LDR deadlines have passed. Given the technology-forcing nature of the statute, however, it is more reasonable to adopt an ex ante view and ask whether, if sufficient resources were devoted to the problem, it was possible to develop the required treatment and disposal technologies between 1986, when it became clear that RCRA applied to mixed wastes, and the present.
Moreover, even though it may have proven impossible for generators to develop the required treatment and disposal options within the statutory period, courts have not shrunk from adopting onerous interpretations • of statutory provisions where required by the clear intent of Congress. Indeed, in two of the cases cited prominently by petitioners, the Supreme Court ultimately upheld purportedly “absurd” statutory constructions on precisely this ground.
See Commissioner v. Asphalt Products Co.,
The next argument advanced by petitioners is based on the legislative history of section 3004(j). Petitioners note that the section was originally enacted as part of a package of amendments introduсed by Representative Breaux. In a section-by-section analysis of his amendments, Representative Breaux stated that the “purpose” of section 3004(j) was “to avoid the potential problem of waste generators, handlers or disposers utilizing ‘sham’ storage to avoid a prohibition on the disposal of a particular waste from one or more methods of land disposal.” 129 Cong. Rec. at 27,666 (Oct. 6, 1983). Relying on this statement, petitioners contend that storage of mixed wastes while treatment or disposal capacity is being developed cannot be construed as a “sham,” and hence that such storage does not run afoul of section 3004(j).
Petitioners’ argument presents a classic example of the selective use of legislative history. In particular, petitioners ask us to ignore the floor statement of Representative Forsythe, who “worked very closely with” Representative Breaux in developing the package of amendments that included section 3004(j).
Id.
Representative Forsythe remarked that under section 3004(j), “[sjtorage based only on some vague hope for a future development of appropriate treatment is no longer acceptable,”
id.
at 27,669, a statement that appears to apply directly to the situation in which mixed waste generators now find themselves. But more to the point, “[ujnless exceptional circumstances dictate otherwise, ‘[wjhen we find the terms of a statute unambiguous, judicial inquiry is complete.’ ”
Burlington Northern R.R. v. Oklahoma Tax Comm’n,
*337
Petitioners also contend that the EPA’s interpretation of section 3004(j) contravenes section 1006(a) of RCRA, which provides that “[n]othing in this chapter shall be construed to apply to ... any activity or substance which is subject to ... the Atomic Energy Act of 1954 [42 U.S.C. 2011 et seq.] except to the extent that such application ... is not inconsistent with the requirements of such Act[ ].” 42 U.S.C. § 6905(a). Petitioners, however, are unable to point to any direct conflict between the EPA’s position and any specific provision of the AEA. As a 1‘esult, petitioners are relegated to the generalized claim that the Agency’s interpretation interferes with the “primary purpose” of the AEA, “the promotion of nuclear power.”
Pacific Gas & Elec. Co. v. State Energy Resources Conservation & Dev. Comm’n,
Finally, we reject petitioners’ suggestion that the EPA’s explicit consideration of an alternative approach to interpreting section 3004(j) indicates that the statute is ambiguous. The EPA did solicit comments on a more lenient approach to implementing section 30040), but the alternative advanced by the EPA was not nearly so broad as to contemplate the indefinite storage of potentially unlimited amounts of wastes pending the development of adequate treatment and disposal capacity. In this regard, it is instructive to examine the two examples of the' types of storage that the EPA suggested would be authorized under its alternative approach:
(1) Where a generator is storing wastes in tanks for six weeks because of a backup at an incinerator which the generator has a contract to use; and
(2) Where a treatment facility treats a prohibited waste tо a level that does not meet the treatment standard and then stores the waste before treating it again to meet the standard.
54 Fed.Reg. at 48,496. Both of these examples sanction the storage of more than what might be considered the “minimum quantity” of waste that is necessary to pursue treatment and disposal options. Still, in each case, the storage is tightly linked to the ongoing or impending utilization of available treatment capacity.
Thus, we conclude that under step one of
Chevron,
section 3004(j) clearly proscribes the indefinite storage of wastes pending the development of treatment and disposal capacity. We wish to emphasize that we are not unsympathetic to the hardships that this decision implies for mixed waste generators. They find themselves in the unenviable position of having no choice but to violate the law. Nevertheless, the possibility that such hardships will occur is Inherent in statutes such as RCRA that are expressly designed to force technology by threatening extreme sanctions. Moreover, the fact that technology may not be able to keep up with timetables established by Congress does not mean that courts are at liberty to ignore them, however burdensome the resulting enforcement. Accordingly, if petitioners are to obtain relief from their present predicament, that relief must come from Congress.
See Griffin,
III. Conclusion
For the foregoing reasons, the petition for review is
Denied.
