---
kind: "section"
citation: "42 U.S.C. § 7604"
title: "42"
title_heading: "The Public Health and Welfare"
number: "7604"
heading: "Citizen suits"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/7604"
units:
  - "Chapter 85 — Air Pollution Prevention and Control"
  - "Subchapter III — General Provisions"
---

# §7604. Citizen suits

- (a) **Authority to bring civil action; jurisdiction—** Except as provided in [subsection (b)](#b), any [person](/usc/42/7602.md?p=e) may commence a civil action on his own behalf—
  - (1) against any [person](/usc/42/7602.md?p=e) (including (i) the United States, and (ii) any other governmental instrumentality or [agency](/usc/42/8262.md?p=1) to the extent permitted by the Eleventh Amendment to the Constitution) who is alleged to have violated (if there is evidence that the alleged [violation](/usc/42/2000e–16a.md?p=c) has been repeated) or to be in [violation](/usc/42/2000e–16a.md?p=c) of (A) an [emission standard](/usc/42/7602.md?p=k) or limitation under this chapter or (B) an order issued by the [Administrator](/usc/42/7602.md?p=a) or a [State](/usc/42/7602.md?p=d) with respect to such a standard or limitation,
  - (2) against the [Administrator](/usc/42/7602.md?p=a) where there is alleged a failure of the [Administrator](/usc/42/7602.md?p=a) to perform any act or duty under this chapter which is not discretionary with the [Administrator](/usc/42/7602.md?p=a), or
  - (3) against any [person](/usc/42/7602.md?p=e) who proposes to construct or constructs any new or [modified](/usc/42/7501.md?p=4) [major emitting facility](/usc/42/7479.md?p=1) without a permit required under part C of subchapter I (relating to significant deterioration of air quality) or part D of subchapter I (relating to nonattainment) or who is alleged to have violated (if there is evidence that the alleged [violation](/usc/42/2000e–16a.md?p=c) has been repeated) or to be in [violation](/usc/42/2000e–16a.md?p=c) of any condition of such permit.

  The district courts shall have jurisdiction, without regard to the amount in controversy or the citizenship of the parties, to enforce such an [emission standard](/usc/42/7602.md?p=k) or limitation, or such an order, or to order the [Administrator](/usc/42/7602.md?p=a) to perform such act or duty, as the case may be, and to apply any appropriate civil penalties (except for actions under [paragraph (2)](#a-2)). The district courts of the United States shall have jurisdiction to compel (consistent with paragraph (2) of this subsection) [agency](/usc/42/8262.md?p=1) action unreasonably delayed, except that an action to compel [agency](/usc/42/8262.md?p=1) action referred to in [section 7607(b) of this title](/usc/42/7607.md?p=b) which is unreasonably delayed may only be filed in a United States District Court within the circuit in which such action would be reviewable under [section 7607(b) of this title](/usc/42/7607.md?p=b). In any such action for unreasonable delay, notice to the entities referred to in [subsection (b)(1)(A)](#b-1-A) shall be provided 180 days before commencing such action.

- (b) **Notice—** No action may be [commenced](/usc/42/7479.md?p=2-A)—
  - (1) under [subsection (a)(1)](#a-1)—
    - (A) prior to 60 days after the plaintiff has given notice of the [violation](/usc/42/2000e–16a.md?p=c) (i) to the [Administrator](/usc/42/7602.md?p=a), (ii) to the [State](/usc/42/7602.md?p=d) in which the [violation](/usc/42/2000e–16a.md?p=c) occurs, and (iii) to any alleged violator of the standard, limitation, or order, or
    - (B) if the [Administrator](/usc/42/7602.md?p=a) or [State](/usc/42/7602.md?p=d) has [commenced](/usc/42/7479.md?p=2-A) and is diligently prosecuting a civil action in a court of the United States or a [State](/usc/42/7602.md?p=d) to require compliance with the standard, limitation, or order, but in any such action in a court of the United States any [person](/usc/42/7602.md?p=e) may intervene as a matter of right.[^1]
  - (2) under [subsection (a)(2)](#a-2) prior to 60 days after the plaintiff has given notice of such action to the [Administrator](/usc/42/7602.md?p=a),

  except that such action may be brought immediately after such notification in the case of an action under this section respecting a [violation](/usc/42/2000e–16a.md?p=c) of [section 7412(i)(3)(A)](/usc/42/7412.md?p=i-3-A) or (f)(4) of this title or an order issued by the [Administrator](/usc/42/7602.md?p=a) pursuant to [section 7413(a) of this title](/usc/42/7413.md?p=a). Notice under this subsection shall be given in such manner as the [Administrator](/usc/42/7602.md?p=a) shall prescribe by regulation.

- (c) **Venue; intervention by Administrator; service of complaint; consent judgment—**
  - (1) Any action respecting a [violation](/usc/42/2000e–16a.md?p=c) by a [stationary source](/usc/42/7602.md?p=z) of an [emission standard](/usc/42/7602.md?p=k) or limitation or an order respecting such standard or limitation may be brought only in the judicial district in which such source is located.
  - (2) In any action under this section, the [Administrator](/usc/42/7602.md?p=a), if not a party, may intervene as a matter of right at any time in the proceeding. A judgment in an action under this section to which the United States is not a party shall not, however, have any binding effect upon the United States.
  - (3) Whenever any action is brought under this section the plaintiff shall serve a copy of the complaint on the Attorney General of the United States and on the [Administrator](/usc/42/7602.md?p=a). No consent judgment shall be entered in an action brought under this section in which the United States is not a party prior to 45 days following the receipt of a copy of the proposed consent judgment by the Attorney General and the [Administrator](/usc/42/7602.md?p=a) during which time the Government may submit its comments on the proposed consent judgment to the court and parties or may intervene as a matter of right.
- (d) **Award of costs; security—** The court, in issuing any final order in any action brought pursuant to [subsection (a)](#a) of this section, may award costs of litigation (including reasonable attorney and expert witness fees) to any party, whenever the court determines such award is appropriate. The court may, if a temporary restraining order or preliminary injunction is sought, require the filing of a bond or equivalent security in accordance with the Federal Rules of Civil Procedure.
- (e) **Nonrestriction of other rights—** Nothing in this section shall restrict any right which any [person](/usc/42/7602.md?p=e) (or class of [persons](/usc/42/7602.md?p=e)) may have under any statute or common law to seek enforcement of any [emission standard](/usc/42/7602.md?p=k) or limitation or to seek any other relief (including relief against the [Administrator](/usc/42/7602.md?p=a) or a [State agency](/usc/42/300s–3.md?p=12)). Nothing in this section or in any other law of the United States shall be construed to prohibit, exclude, or restrict any [State](/usc/42/7602.md?p=d), local, or interstate authority from—
  - (1) bringing any enforcement action or obtaining any judicial remedy or sanction in any [State](/usc/42/7602.md?p=d) or local court, or
  - (2) bringing any administrative enforcement action or obtaining any administrative remedy or sanction in any [State](/usc/42/7602.md?p=d) or local administrative [agency](/usc/42/8262.md?p=1), department or instrumentality,

  against the United States, any department, [agency](/usc/42/8262.md?p=1), or instrumentality thereof, or any officer, agent, or employee thereof under [State](/usc/42/7602.md?p=d) or local law respecting control and abatement of air pollution. For provisions requiring compliance by the United States, departments, [agencies](/usc/42/8262.md?p=1), instrumentalities, officers, agents, and employees in the same manner as nongovernmental entities, see [section 7418 of this title](/usc/42/7418.md).

- (f) **“Emission standard or limitation under this chapter” defined—** For purposes of this section, the term “[emission standard](/usc/42/7602.md?p=k) or limitation under this chapter” means—
  - (1) a schedule or timetable of compliance, [emission limitation](/usc/42/7602.md?p=k), [standard of performance](/usc/42/7602.md?p=l) or [emission standard](/usc/42/7602.md?p=k),
  - (2) a control or prohibition respecting a [motor vehicle](/usc/42/7550.md?p=2) fuel or fuel additive, or[^2]
  - (3) any condition or requirement of a permit under part C of subchapter I (relating to significant deterioration of air quality) or part D of subchapter I (relating to nonattainment),,[^3] [section 7419 of this title](/usc/42/7419.md) (relating to primary nonferrous smelter orders), any condition or requirement under an [applicable implementation plan](/usc/42/7602.md?p=q) relating to transportation control measures, air quality maintenance plans, vehicle inspection and maintenance programs or vapor recovery requirements, [section 7545(e)](/usc/42/7545.md?p=e) and (f) of this title (relating to fuels and fuel additives), [section 7491 of this title](/usc/42/7491.md) (relating to visibility protection), any condition or requirement under subchapter VI (relating to ozone protection), or any requirement under section [7411](/usc/42/7411.md) or [7412](/usc/42/7412.md) of this title (without regard to whether such requirement is expressed as an [emission standard](/usc/42/7602.md?p=k) or otherwise);[^4] or
  - (4) any other standard, limitation, or schedule established under any permit issued pursuant to subchapter V or under any applicable [State](/usc/42/7602.md?p=d) implementation plan approved by the [Administrator](/usc/42/7602.md?p=a), any permit term or condition, and any requirement to obtain a permit as a condition of operations.[^5]

  which is in effect under this chapter (including a requirement applicable by reason of [section 7418 of this title](/usc/42/7418.md)) or under an [applicable implementation plan](/usc/42/7602.md?p=q).

- (g) **Penalty fund—**
  - (1) Penalties received under [subsection (a)](#a) shall be deposited in a special fund in the United States Treasury for licensing and other services. Amounts in such fund are authorized to be appropriated and shall remain available until expended, for use by the [Administrator](/usc/42/7602.md?p=a) to finance air compliance and enforcement activities. The [Administrator](/usc/42/7602.md?p=a) shall annually report to the Congress about the sums deposited into the fund, the sources thereof, and the actual and proposed uses thereof.
  - (2) Notwithstanding [paragraph (1)](#g-1) the court in any action under this subsection[^6] to apply civil penalties shall have discretion to order that such civil penalties, in lieu of being deposited in the fund referred to in [paragraph (1)](#g-1), be used in beneficial mitigation [projects](/usc/42/13641.md?p=2) which are consistent with this chapter and enhance the public health or the environment. The court shall obtain the view of the [Administrator](/usc/42/7602.md?p=a) in exercising such discretion and selecting any such [projects](/usc/42/13641.md?p=2). The amount of any such payment in any such action shall not exceed $100,000.

## Footnotes

[^1]: So in original. The period probably should be “, or”.
[^2]: So in original. The word “or” probably should not appear.
[^3]: So in original.
[^4]: So in original. The semicolon probably should be a comma.
[^5]: So in original. The period probably should be a comma.
[^6]: So in original. Probably should be “this section”.

## Source credit

(July 14, 1955, ch. 360, title III, § 304, as added Pub. L. 91–604, § 12(a), Dec. 31, 1970, 84 Stat. 1706; amended Pub. L. 95–95, title III, § 303(a)–(c), Aug. 7, 1977, 91 Stat. 771, 772; Pub. L. 95–190, § 14(a) (77), (78), Nov. 16, 1977, 91 Stat. 1404; Pub. L. 101–549, title III, § 302(f), title VII, § 707(a)–(g), Nov. 15, 1990, 104 Stat. 2574, 2682, 2683.)

## Notes

### Editorial Notes

### References in Text

The Federal Rules of Civil Procedure, referred to in subsec. (d), are set out in the Appendix to Title 28, Judiciary and Judicial Procedure.

### Codification

Section was formerly classified to section 1857h–2 of this title.

### Prior Provisions

A prior section 304 of act July 14, 1955, was renumbered section 311 by Pub. L. 91–604 and is classified to section 7611 of this title.

### Amendments

1990—Subsec. (a). Pub. L. 101–549, § 707(a), (f), in closing provisions, inserted before period at end “, and to apply any appropriate civil penalties (except for actions under paragraph (2))” and inserted sentences at end giving courts jurisdiction to compel agency action unreasonably delayed and requiring 180 days notice prior to commencement of action.

Subsec. (a)(1), (3). Pub. L. 101–549, § 707(g), inserted “to have violated (if there is evidence that the alleged violation has been repeated) or” before “to be in violation”.

Subsec. (b). Pub. L. 101–549, § 302(f), substituted “section 7412(i)(3)(A) or (f)(4)” for “section 7412(c)(1)(B)” in closing provisions.

Subsec. (c)(2). Pub. L. 101–549, § 707(c), amended par. (2) generally. Prior to amendment, par. (2) read as follows: “In such action under this section, the Administrator, if not a party, may intervene as a matter of right.”

Subsec. (c)(3). Pub. L. 101–549, § 707(d), added subsec. (c)(3).

Subsec. (f)(3). Pub. L. 101–549, § 707(e), struck out “any condition or requirement of section 7413(d) of this title (relating to certain enforcement orders)” before “, section 7419 of this title”, substituted “subchapter VI” for “part B of subchapter I”, and substituted “; or” for period at end.

Subsec. (f)(4). Pub. L. 101–549, § 707(e), which directed that par. (4) be added at end of subsec. (f), was executed by adding par. (4) after par. (3), to reflect the probable intent of Congress.

Subsec. (g). Pub. L. 101–549, § 707(b), added subsec. (g).

1977—Subsec. (a)(3). Pub. L. 95–190, § 14(a)(77), inserted “or modified” after “new”.

Pub. L. 95–95, § 303(a), added subsec. (a)(3).

Subsec. (e). Pub. L. 95–95, § 303(c), inserted provisions which prohibited any construction of this section or any other law of the United States which would prohibit, exclude, or restrict any State, local, or interstate authority from bringing any enforcement action or obtaining any judicial remedy or sanction in any State or local court against the United States or bringing any administrative enforcement action or obtaining any administrative remedy or sanction against the United States in any State or local administrative agency, department, or instrumentality under State or local law.

Subsec. (f)(3). Pub. L. 95–190, § 14(a)(78), inserted “, or” after “(relating to ozone protection)”, substituted “any condition or requirement under an” for “requirements under an”, and struck out “or” before “section 7491”.

Pub. L. 95–95, § 303(b), added par. (3).

### Statutory Notes and Related Subsidiaries

### Effective Date of 1990 Amendment

Pub. L. 101–549, title VII, § 707(g), Nov. 15, 1990, 104 Stat. 2683, provided that: “The amendment made by this subsection [amending this section] shall take effect with respect to actions brought after the date 2 years after the enactment of the Clean Air Act Amendments of 1990 [Nov. 15, 1990].”

### Effective Date of 1977 Amendment

Amendment by Pub. L. 95–95 effective Aug. 7, 1977, except as otherwise expressly provided, see section 406(d) of Pub. L. 95–95, set out as a note under section 7401 of this title.

### Termination of Reporting Requirements

For termination, effective May 15, 2000, of reporting provisions in subsec. (g)(1) of this section, see section 3003 of Pub. L. 104–66, as amended, set out as a note under section 1113 of Title 31, Money and Finance, and the 6th item on page 165 of House Document No. 103–7.

### Pending Actions and Proceedings

Suits, actions, and other proceedings lawfully commenced by or against the Administrator or any other officer or employee of the United States in his official capacity or in relation to the discharge of his official duties under act July 14, 1955, the Clean Air Act, as in effect immediately prior to the enactment of Pub. L. 95–95 [Aug. 7, 1977], not to abate by reason of the taking effect of Pub. L. 95–95, see section 406(a) of Pub. L. 95–95, set out as an Effective Date of 1977 Amendment note under section 7401 of this title.

### Modification or Rescission of Rules, Regulations, Orders, Determinations, Contracts, Certifications, Authorizations, Delegations, and Other Actions

All rules, regulations, orders, determinations, contracts, certifications, authorizations, delegations, or other actions duly issued made, or taken by or pursuant to act July 14, 1955, the Clean Air Act, as in effect immediately prior to the date of enactment of Pub. L. 95–95 [Aug. 7, 1977] to continue in full force and effect until modified or rescinded in accordance with act July 14, 1955, as amended by Pub. L. 95–95 [this chapter], see section 406(b) of Pub. L. 95–95, set out as an Effective Date of 1977 Amendment note under section 7401 of this title.