# 40 CFR § 104.4: Statement of basis and purpose

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-104.4

## Section

- **Citation:** 40 CFR § 104.4
- **Heading:** Statement of basis and purpose
- **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 D—WATER PROGRAMS > PART 104—PUBLIC HEARINGS ON EFFLUENT STANDARDS FOR TOXIC POLLUTANTS

## Text

Whenever the Administrator publishes a proposed effluent standard, the notice thereof published in the Federal Register shall include a statement of the basis and purpose of the standard or a summary thereof. This statement shall include:
(a) The purpose of the proposed standard;
(b) An explanation of how the proposed standard was derived;
(c) Scientific and technical data and studies supporting the proposed standard or references thereto if the materials are published or otherwise readily available; and
(d) Such other information as may be reasonably required to set forth fully the basis of the standard.
Where the notice of the proposed rulemaking summarizes the full statement of basis and purpose, or incorporates documents by reference, the documents thus summarized or incorporated by reference shall thereupon be made available by the Agency for inspection and copying by any interested person.

## Nearby sections

- [40 CFR § 104.1 § 104.1 Applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-40-104.1.md)
- [40 CFR § 104.4 § 104.4 Statement of basis and purpose.](https://www.frixlaw.com/law-library/statutes/ecfr-40-104.4.md)
- [40 CFR § 104.7 § 104.7 Powers of Presiding Officer.](https://www.frixlaw.com/law-library/statutes/ecfr-40-104.7.md)
- [40 CFR § 104.9 § 104.9 Admission of evidence.](https://www.frixlaw.com/law-library/statutes/ecfr-40-104.9.md)
- [40 CFR § 104.13 § 104.13 Interlocutory and post-hearing review of rulings of the Presiding Officer; motions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-104.13.md)
- [40 CFR § 104.14 § 104.14 Tentative and final decision by the Administrator.](https://www.frixlaw.com/law-library/statutes/ecfr-40-104.14.md)
- [40 CFR § 104.16 § 104.16 Filing and time.](https://www.frixlaw.com/law-library/statutes/ecfr-40-104.16.md)
- [40 CFR § 108.1 § 108.1 Applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-40-108.1.md)
- [40 CFR § 108.2 § 108.2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-108.2.md)
- [40 CFR § 108.5 § 108.5 Procedure.](https://www.frixlaw.com/law-library/statutes/ecfr-40-108.5.md)
- [40 CFR § 108.6 § 108.6 Recommendations.](https://www.frixlaw.com/law-library/statutes/ecfr-40-108.6.md)
- [40 CFR § 109.2 § 109.2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-109.2.md)
- [40 CFR § 109.4 § 109.4 Relationship to Federal response actions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-109.4.md)
- [40 CFR § 109.6 § 109.6 Coordination.](https://www.frixlaw.com/law-library/statutes/ecfr-40-109.6.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-104.4. Check the current official text before relying on it. Not legal advice.