# 40 CFR § 51.105: Approval of plans

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-51.105

## Section

- **Citation:** 40 CFR § 51.105
- **Heading:** Approval of plans
- **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 51—REQUIREMENTS FOR PREPARATION, ADOPTION, AND SUBMITTAL OF IMPLEMENTATION PLANS > Subpart F—Procedural Requirements

## Text

Revisions of a plan, or any portion thereof, will not be considered part of an applicable plan until such revisions have been approved by the Administrator in accordance with this part.
[51 FR 40661, Nov. 7, 1986, as amended at 60 FR 33922, June 29, 1995]

## Nearby sections

- [40 CFR § 51.100 § 51.100 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.100.md)
- [40 CFR § 51.101 § 51.101 Stipulations.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.101.md)
- [40 CFR § 51.102 § 51.102 Public hearings.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.102.md)
- [40 CFR § 51.103 § 51.103 Submission of plans, preliminary review of plans.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.103.md)
- [40 CFR § 51.104 § 51.104 Revisions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.104.md)
- [40 CFR § 51.105 § 51.105 Approval of plans.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.105.md)
- [40 CFR § 51.110 § 51.110 Attainment and maintenance of national standards.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.110.md)
- [40 CFR § 51.111 § 51.111 Description of control measures.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.111.md)
- [40 CFR § 51.112 § 51.112 Demonstration of adequacy.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.112.md)
- [40 CFR § 51.114 § 51.114 Emissions data and projections.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.114.md)
- [40 CFR § 51.115 § 51.115 Air quality data and projections.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.115.md)
- [40 CFR § 51.116 § 51.116 Data availability.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.116.md)
- [40 CFR § 51.117 § 51.117 Additional provisions for lead.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.117.md)
- [40 CFR § 51.118 § 51.118 Stack height provisions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-51.118.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-51.105. Check the current official text before relying on it. Not legal advice.