# 18 CFR § 1318.104: Reliance on existing environmental documents

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.104

## Section

- **Citation:** 18 CFR § 1318.104
- **Heading:** Reliance on existing environmental documents
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 18—Conservation of Power and Water Resources > CHAPTER XIII—TENNESSEE VALLEY AUTHORITY > PART 1318—IMPLEMENTATION OF THE NATIONAL ENVIRONMENTAL POLICY ACT OF 1969 > Subpart B—Initiating the NEPA Process

## Text

(a) TVA may rely on another Federal agency's EA or EIS (including an EA or EIS prepared by a Tribal, State, or local agency on behalf of a Federal agency), or a portion thereof, if TVA determines that TVA's proposed action is substantially the same or similar to the other agency's action, and the other agency's document meets the standards for an adequate statement or assessment under these procedures.
(b) In making this determination, TVA will consider whether the scope and analyses in the other agency's EA or EIS adequately address the TVA action. TVA will cite, briefly describe the content and relevance to the environmental document, and may make modifications that are necessary to render the relied-upon document, or portion thereof, fit for fulfilling NEPA analytic requirements for the action at hand. TVA will publish this determination and the EA or EIS relied upon and notify affected Federal, Tribal, State, and local agencies and other interested entities.
(c) TVA may supplement another agency's EA or EIS in accordance with § 1318.103.

## Nearby sections

- [18 CFR § 1318.10 § 1318.10 Purpose and policy.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.10.md)
- [18 CFR § 1318.20 § 1318.20 Abbreviations.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.20.md)
- [18 CFR § 1318.30 § 1318.30 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.30.md)
- [18 CFR § 1318.100 § 1318.100 Determining when NEPA applies.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.100.md)
- [18 CFR § 1318.101 § 1318.101 Determining the appropriate level of NEPA review.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.101.md)
- [18 CFR § 1318.102 § 1318.102 Determination of NEPA Adequacy.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.102.md)
- [18 CFR § 1318.103 § 1318.103 Supplements.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.103.md)
- [18 CFR § 1318.104 § 1318.104 Reliance on existing environmental documents.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.104.md)
- [18 CFR § 1318.105 § 1318.105 Lead and cooperating agency determinations.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.105.md)
- [18 CFR § 1318.106 § 1318.106 Schedule for the NEPA process.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.106.md)
- [18 CFR § 1318.107 § 1318.107 Scoping process.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.107.md)
- [18 CFR § 1318.200 § 1318.200 Purpose and scope.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.200.md)
- [18 CFR § 1318.201 § 1318.201 Extraordinary circumstances.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.201.md)
- [18 CFR § 1318.202 § 1318.202 Public notification.](https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.202.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-18-1318.104. Check the current official text before relying on it. Not legal advice.