# 40 CFR § 61.05: Prohibited activities

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-61.05

## Section

- **Citation:** 40 CFR § 61.05
- **Heading:** Prohibited activities
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 40—Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS > PART 61—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS > Subpart A—General Provisions

## Text

(a) After the effective date of any standard, no owner or operator shall construct or modify any stationary source subject to that standard without first obtaining written approval from the Administrator in accordance with this subpart, except under an exemption granted by the President under section 112(c)(2) of the Act. Sources, the construction or modification of which commenced after the publication date of the standards proposed to be applicable to the sources, are subject to this prohibition.
(b) After the effective date of any standard, no owner or operator shall operate a new stationary source subject to that standard in violation of the standard, except under an exemption granted by the President under section 112(c)(2) of the Act.
(c) Ninety days after the effective date of any standard, no owner or operator shall operate any existing source subject to that standard in violation of the standard, except under a waiver granted by the Administrator under this part or under an exemption granted by the President under section 112(c)(2) of the Act.
(d) No owner or operator subject to the provisions of this part shall fail to report, revise reports, or report source test results as required under this part.
[38 FR 8826, Apr. 6, 1973, as amended at 50 FR 46291, Nov. 7, 1985]

## Nearby sections

- [40 CFR § 61.01 § 61.01 Lists of pollutants and applicability of part 61.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.01.md)
- [40 CFR § 61.02 § 61.02 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.02.md)
- [40 CFR § 61.03 § 61.03 Units and abbreviations.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.03.md)
- [40 CFR § 61.04 § 61.04 Address.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.04.md)
- [40 CFR § 61.05 § 61.05 Prohibited activities.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.05.md)
- [40 CFR § 61.06 § 61.06 Determination of construction or modification.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.06.md)
- [40 CFR § 61.07 § 61.07 Application for approval of construction or modification.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.07.md)
- [40 CFR § 61.08 § 61.08 Approval of construction or modification.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.08.md)
- [40 CFR § 61.09 § 61.09 Notification of startup.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.09.md)
- [40 CFR § 61.10 § 61.10 Source reporting and waiver request.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.10.md)
- [40 CFR § 61.11 § 61.11 Waiver of compliance.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.11.md)
- [40 CFR § 61.12 § 61.12 Compliance with standards and maintenance requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.12.md)
- [40 CFR § 61.13 § 61.13 Emission tests and waiver of emission tests.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.13.md)
- [40 CFR § 61.14 § 61.14 Monitoring requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-61.14.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-61.05. Check the current official text before relying on it. Not legal advice.