delivered the opinion of the Court.

The citizen suit provision of the Resource Conservation and Recovery Act of 1976 (RCRA), 90 Stat. 2825, as amended, 42 U. S. C. § 6972 (1982 ed. and Supp. V), permits individuals to commence an action in district court to enforce waste disposal regulations promulgated under the Act. At least 60 days before commencing suit, plaintiffs must notify the alleged violator, the State, and the Environmental Protection Agency (EPA) of their intent to sue. 42 U. S. C. § 6972(b)(1).[*23] This 60-day notice provision was modeled upon § 304 of the Clean Air Amendments of 1970, 84 Stat. 1706, as amended, 42 U. S. C. § 7604 (1982 ed.). Since 1970, a number of other federal statutes have incorporated notice provisions patterned after §304.^[1] In this case, we must decide whether compliance with the 60-day notice provision is a mandatory precondition to suit or can be disregarded by the district court at its discretion.

I

Petitioners own a commercial dairy farm located next to respondent’s sanitary landfill. In April 1981, believing that the landfill operation violated standards established under RCRA, petitioners sent respondent written notice of their intention to file suit. A year later, petitioners commenced this action. On March 1, 1983, respondent moved for summary judgment on the ground that petitioners had failed to notify Oregon’s Department of Environmental Quality (DEQ) and[*24] the EPA of their intent to sue, as required by § 6972(b)(1). Respondent claimed that this failure to comply with the notice requirement deprived the District Court of jurisdiction. On March 2, 1983, petitioners notified the agencies of the suit.

The District Court denied respondent’s motion. It reasoned that petitioners had cured any defect in notice by formally notifying the state and federal agencies on March 2, 1983. The agencies would then have 60 days to take appropriate steps to cure any violation at respondent’s landfill. The court noted that the purpose of the notice requirement was to give administrative agencies an opportunity to enforce environmental regulations. In this case, neither the state nor the federal agency expressed any interest in taking action against respondent. Therefore, the court concluded that dismissing the action at this stage would waste judicial resources. Civ. No. 82-481 (Ore., Apr. 22, 1983).

After the action proceeded to trial, the District Court held that respondent had violated RCRA. The court ordered respondent to remedy the violation but refused to grant petitioners’ motion for injunctive relief. Civ. No. 82-481JU (Sept. 30, 1986). In a later order, the District Court denied petitioners’ request for attorney’s fees. Petitioners appealed both rulings; respondent cross-appealed from the denial of its summary judgment motion.

The Court of Appeals for the Ninth Circuit concluded that petitioners’ failure to comply with the 60-day notice requirement deprived the District Court of subject matter jurisdiction. Relying on the plain language of § 6972(b)(1), the Court of Appeals determined that permitting the plaintiff to proceed without giving notice would constitute “‘judicial amendment’ ” of a clear statutory command. 844 F. 2d 598, 600 (1987), quoting Garcia v. Cecos Int'l, Inc., 761 F. 2d 76, 78 (CA1 1986) (citation omitted). The Court of Appeals also determined that strict construction of the notice requirement would best further the goal of giving environmental agencies,[*25] rather than courts, the primary responsibility for enforcing RCRA. 844 F. 2d, at 601. Therefore, the Court of Appeals remanded the action to the District Court with instructions to dismiss. We granted certiorari to resolve the conflict among the Courts of Appeals regarding the correct interpretation of the notice provision.^[2] 489 U. S. 1077 (1989).

II

As we have repeatedly noted, “the starting point for interpreting a statute is the language of the statute itself.” Consumer Product Safety Comm’n v. GTE Sylvania, Inc., 447 U. S. 102, 108 (1980). Section 6972(a)(1) permits any person to commence a civil action against an alleged violator of regulations established under RCRA “[except] as provided in subsection (b).” Subsection (b)(1) states:

“(b) Actions prohibited.

“No action may be commenced under paragraph (a)(1) of this section—

“(1) prior to sixty days after the plaintiff has given notice of the violation (A) to the Administrator [of the EPA]; (B) to the State in which the alleged violation occurs; and (C) to any alleged violator of such permit, stand[*26] ard, regulation, condition, requirement, or order . . . 42 U. S. C. § 6972(b)(1) (1982 ed.).

The language of this provision could not be clearer. A citizen may not commence an action under RCRA until 60 days after the citizen has notified the EPA, the State in which the alleged violation occurred, and the alleged violator. Actions commenced prior to 60 days after notice are “prohibited.” Because this language is expressly incorporated by reference into § 6972(a), it acts as a specific limitation on a citizen’s right to bring suit. Under a literal reading of the statute, compliance with the 60-day notice provision is a mandatory, not optional, condition precedent for suit.

Petitioners do not contend that the language of this provision is ambiguous; rather, they assert that it should be given a flexible or pragmatic construction. Thus, petitioners argue that if a suit commenced without proper notice is stayed until 60 days after notice had been given, the District Court should deem the notice requirement to be satisfied. See Pymatuning Water Shed Citizens for Hygienic Environment v. Eaton, 644 P. 2d 995, 996-997 (CA3 1981). According to petitioners, a 60-day stay would serve the same function as delaying commencement of the suit: it would give the Government an opportunity to take action against the alleged violator and it would give the violator the opportunity to bring itself into compliance.

Whether or not a stay is in fact the functional equivalent of a precommencement delay, such an interpretation of §6972(b) flatly contradicts the language of the statute. Under Rule 3 of the Federal Rules of Civil Procedure, “[a] civil action is commenced by filing a complaint with the court.” Reading § 6972(b)(1) in light of this Rule, a plaintiff may not file suit before fulfilling the 60-day notice requirement. Staying judicial action once' the suit has been filed does not honor this prohibition. Congress could have excepted parties from complying with the notice or delay requirement; indeed, it carved out such an exception in its 1984 amendments to[*27] RCRA. See, e. g., 42 U. S. C. §6972(b)(1)(A) (1982 ed., Supp. V) (abrogating the 60-day delay requirement when there is a danger that hazardous waste will be discharged). RCRA, however, contains no exception applicable to petitioners’ situation; we are not at liberty to create an exception where Congress has declined to do so.

Petitioners further argue that under our decision in Zipes v. Trans World Airlines, Inc., 455 U. S. 385, 393 (1982), RCRA’s 60-day notice provision should be subject to equitable modification and cure. In Zipes, we held that the timely filing of a charge of discrimination with the Equal Employment Opportunity Commission, as required under Title VII of the Civil Rights Act of 1964, 78 Stat. 253, as amended, 42 U. S. C. §2000e-5(e) (1982 ed.) (“[a] charge under this section shall be filed within one hundred and eighty days after the alleged unlawful employment practice occurred . . . ”), was not a jurisdictional prerequisite to suit but was subject to waiver, estoppel, and equitable tolling. 455 U. S., at 393. This decision does not help petitioners. First, as we noted in Zipes, both the language and legislative history of §2000e-5(e) indicate that the filing period operated as a statute of limitations. 455 U. S., at 393-394. The running of such statutes is traditionally subject to equitable tolling. See, e. g., Honda v. Clark, 386 U. S. 484, 501 (1967) (holding that where consistent with the overall congressional purpose, a “traditional equitable tolling principle” should be applied to a statutory limitations period). Unlike a statute of limitations, RCRA’s 60-day notice provision is not triggered by the violation giving rise to the action. Rather, petitioners have full control over the timing of their suit: they need only give notice to the appropriate parties and refrain from commencing their action for at least 60 days. The equities do not weigh in favor of modifying statutory requirements when the procedural default is caused by petitioners’ “failure to take the minimal steps necessary” to preserve their claims.[*28] Johnson v. Railway Express Agency, Inc., 421 U. S. 454, 466 (1975).

Nor can we excuse petitioners’ failure on the ground that “a technical reading [of §6972] would be ‘particularly inappropriate in a statutory scheme in which laymen, unassisted by trained lawyers, initiate the process.’” Zipes v. TransWorld Airlines, Inc., supra, at 397, quoting Love v. Pullman Co., 404 U. S. 522, 527 (1972). While the initial charge in a Title VII proceeding is normally filed by an aggrieved individual, see §2000e-5(b), citizen suits under RCRA are like any other lawsuit, generally filed by trained lawyers who are presumed to be aware of statutory requirements. (Indeed, counsel for petitioners in this case admitted at oral argument that he knew of the notice provisions but inadvertently neglected to notify the state and federal agencies. Tr. of Oral Arg. 3-4.) Under these circumstances, it is not unfair to require strict compliance with statutory conditions precedent to suit.

Petitioners next contend that a literal interpretation of the notice provision would defeat Congress’ intent in enacting RCRA; to support this argument, they cite passages from the legislative history of the first citizen suit statute, §304 of the Clean Air Amendments of 1970, indicating that citizen suits should be encouraged. See S. Rep. No. 91-1196, pp. 36-37 (1970), 1 Senate Committee on Public Works, 93d Cong., 2d Sess., A Legislative History of the Clean Air Amendments of 1970, pp. 436-437 (Comm. Print 1974). This reliance on legislative history is misplaced. We have held that “[a]bsent a clearly expressed legislative intention to the contrary,” the words of the statute are conclusive. Consumer Product Safety Comm’n v. GTE Sylvania, Inc., 447 U. S., at 108. Nothing in the legislative history of the citizen suit provision militates against honoring the plain language of the notice requirement. Nor is this one of the “ ‘rare cases [in which] the literal application of a statute will produce a result demonstrably at odds with the intentions of[*29] its drafters.’ ” United States v. Ron Pair Enterprises, Inc., 489 U. S. 235, 242 (1989), quoting Griffin v. Oceanic Contractors, Inc., 458 U. S. 564, 571 (1982). Rather, the legislative history indicates an intent to strike a balance between encouraging citizen enforcement of environmental regulations and avoiding burdening the federal courts with excessive numbers of citizen suits. See, e. g., 116 Cong. Rec. 32927 (1970) (comments of Sen. Muskie); see also Note, Notice by Citizen Plaintiffs in Environmental Litigation, 79 Mich. L. Rev. 299, 301-307 (1980) (reviewing the legislative history of the Clean Air Amendments of 1970). Requiring citizens to comply with the notice and delay requirements serves this congressional goal in two ways. First, notice allows Government agencies to take responsibility for enforcing environmental regulations, thus obviating the need for citizen suits. See Gwaltney of Smithfield, Inc. v. Chesapeake Bay Foundation, Inc., 484 U. S. 49, 60 (1987) (“The bar on citizen suits when governmental enforcement action is under way suggests that the citizen suit is meant to supplement rather than to supplant governmental action”). In many cases, an agency may be able to compel compliance through administrative action, thus eliminating the need for any access-to the courts. See 116 Cong. Rec. 33104 (1970) (comments of Sen. Hart). Second, notice gives the alleged violator “an opportunity to bring itself into complete compliance with the Act and thus likewise render unnecessary a citizen suit.” Gwaltney, supra, at 60. This policy would be frustrated if citizens could immediately bring suit without involving federal or state enforcement agencies. Giving full effect to the words of the statute preserves the compromise struck by Congress.

Petitioners next assert that giving effect to the literal meaning of the notice provisions would compel “absurd or futile results.” United States v. American Trucking Assns., Inc., 310 U. S. 534, 543 (1940). In essence, petitioners make two arguments. First, petitioners, with amici, [*30] contend that strictly enforcing the 60-day delay provision would give violators an opportunity to cause further damage or . actually accomplish the objective that the citizen was attempting to stop. See, e. g., Save Our Sound Fisheries Assn. v. Callaway, 429 F. Supp. 1136, 1142-1145 (RI 1977) (Army Corps of Engineers violated three environmental statutes in order to award dredging contract before citizen suit to enjoin dredging could commence). Similarly, they assert that courts would be precluded from giving essential temporary injunctive relief until 60 days had elapsed. Although we do not underestimate the potential damage to the environment that could ensue during the 60-day waiting period, this problem arises as a result of the balance struck by Congress in developing the citizen suit provisions. Congress has addressed the dangers of delay in certain circumstances and made exceptions to the required notice periods accordingly. See, e. g., the Clean Water Act, as added, 86 Stat. 888, 33 U. S. C. §§ 1365(b) and 1317(a) (1982 ed.) (citizen suits may be brought immediately in cases involving violations of toxic pollutant effluent limitations); the Clean Air Amendments of 1970, 84 Stat. 1706, 42 U. S. C. § 7604(b) (1982 ed.) (citizen suits may be brought immediately in cases involving stationary-source emissions standards and other specified compliance orders). Moreover, it is likely that compliance with the notice requirement will trigger appropriate federal or state enforcement actions to prevent serious damage.

Second, petitioners argue that a strict construction of the notice provision would cause procedural anomalies. For example, petitioners contend that if a citizen notified Government agencies of a violation, and the agencies explicitly declined to act, it would be pointless to require the citizen to wait 60 days to commence suit. While such a result may be frustrating to the plaintiff, it is not irrational: as the Court of Appeals for the First Circuit noted, “[pjermitting immediate suit ignores the possibility that a violator or agency may[*31] change its mind as the threat of suit becomes more imminent.” Garcia v. Cecos Int’l, Inc., 761 F. 2d, at 82.

In sum, we conclude that none of petitioners’ arguments requires us to disregard the plain language of § 6972(b). “[I]n the long run, experience teaches that strict adherence to the procedural requirements specified by the legislature is the best guarantee of evenhanded administration of the law.” Mohasco Corp. v. Silver, 447 U. S. 807, 826 (1980). Therefore, we hold that the notice and 60-day delay requirements are mandatory conditions precedent to commencing suit under the RCRA citizen suit provision; a district court may not disregard these requirements at its discretion. The parties have framed the question presented in this case as whether the notice provision is jurisdictional or procedural. In light of our literal interpretation of the statutory requirement, we need not determine whether § 6972(b) is jurisdictional in the strict sense of the term. See Fair Assessment in Real Estate Assn., Inc. v. McNary, 454 U. S. 100, 137 (1981) (Brennan, J., concurring in judgment) (“In 1937 the requirement of exhaustion of state administrative remedies was certainly a mandatory precondition to suit, and in that sense a ‘jurisdictional prerequisite’”).

As a general rule, if an action is barred by the terms of a statute, it must be dismissed. Thus in Baldwin County Welcome Center v. Brown, 466 U. S. 147 (1984), we approved the District Court’s determination that a claimant who failed to file a complaint within the 90-day statutory time period mandated by Title VII, 42 U. S. C. § 2000e-5(f )(1) (1982 ed.), had forfeited her right to pursue her claim. Accordingly, we rejected the Court of Appeals for the Eleventh Circuit’s conclusion that under the “ ‘generous’ ” interpretation required by the remedial nature of Title VII, claimant’s filing of a right-to-sue letter had tolled the 90-day period. 466 U. S., at 149. But cf. Oscar Mayer & Co. v. Evans, 441 U. S. 750, 764-765, and n. 13 (1979) (where requiring dismissal and refiling “would serve no purpose other than the creation of an addi[*32] tional procedural technicality,” a district court may comply with § 14(b) of the Age Discrimination in Employment Act of 1967, 81 Stat. 607, 29 U. S. C. § 633(b) (1982 ed.), by holding an action in abeyance during the pendency of a mandatory waiting period) (citation omitted). As we have noted, dismissal of an RCRA suit serves important federal goals, see supra, at 29. Indeed, the EPA, the federal agency charged with enforcement of RCRA, interprets the notice provision as requiring dismissal for noncompliance. Tr. of Oral Arg. 35-39. Such a remedy for actions filed in violation of § 6972(b)(1) will further judicial efficiency; courts will have no need to make case-by-case determinations of when or whether failure to fulfill the notice requirement is fatal to a party’s suit.

Petitioners urge us not to require dismissal of this action after years of litigation and a determination on the merits. They contend that such a dismissal would unnecessarily waste judicial resources. We are sympathetic to this argument. The complex environmental and legal issues involved in this litigation have consumed the time and energy of a District Court and the parties for nearly four years. Nevertheless, the factors which have led us to apply decisions non-retroactively are not present in this case. See Chevron Oil Co. v. Huson, 404 U. S. 97, 106-107 (1971). Our decision here does not establish a new rule of law; nor does it overrule clear past precedent on which litigants may have relied. Moreover, the statute itself put petitioners on notice of the requirements for bringing suit. Retroactive operation of our decision will further the congressional purpose of giving agencies and alleged violators a 60-day nonadversarial period to achieve compliance with RCRA regulations. Nor will the dismissal of this action have the inequitable result of depriving petitioners of their “right to a day in court.” Id., at 108. Petitioners remain free to give notice and file their suit in compliance with the statute to enforce pertinent environmental standards.

[*33] Accordingly, we hold that where a party suing under the citizen suit provisions of RCRA fails to meet the notice and 60-day delay requirements of § 6972(b), the district court must dismiss the action as barred by the terms of the statute.

The judgment of the Court of Appeals is affirmed.

It is so ordered.