# 42 U.S.C. § 300g–1: National drinking water regulations

> Federal · Statutes · In force

URL: https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%931

## Section

- **Citation:** 42 U.S.C. § 300g–1
- **Heading:** National drinking water regulations
- **Jurisdiction:** Federal
- **Kind:** Statutes
- **Status:** In force
- **Text as of:** September 9, 2026
- **Source:** Publisher's official text
- **Location:** Title 42—THE PUBLIC HEALTH AND WELFARE > CHAPTER 6A—PUBLIC HEALTH SERVICE > SUBCHAPTER XII—SAFETY OF PUBLIC WATER SYSTEMS > Part B—Public Water Systems

## Text

Effective on June 19, 1986 , each national interim or revised primary drinking water regulation promulgated under this section before June 19, 1986 , shall be deemed to be a national primary drinking water regulation under subsection (b). No such regulation shall be required to comply with the standards set forth in subsection (b)(4) unless such regulation is amended to establish a different maximum contaminant level after June 19, 1986 .

( July 1, 1944, ch. 373 , title XIV, § 1412, as added Pub. L. 93–523, § 2(a) , Dec. 16, 1974 , 88 Stat. 1662 ; amended Pub. L. 95–190 , §§ 3(c), 12(a), Nov. 16, 1977 , 91 Stat. 1394 , 1398; Pub. L. 99–339, title I, § 101(a) –(c)(1), (d), (e), June 19, 1986 , 100 Stat. 642–646 ; Pub. L. 104–182, title I , §§ 102(a), (c)(2), 103, 104(a), (c), 105–111(a), title V, § 501(a)(1), (2), Aug. 6, 1996 , 110 Stat. 1617 , 1621–1623, 1625–1631, 1691.)

## Nearby sections

- [42 U.S.C. § 300f Definitions](https://www.frixlaw.com/law-library/statutes/usc_t42_s300f.md)
- [42 U.S.C. § 300g Coverage](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g.md)
- [42 U.S.C. § 300g–1 National drinking water regulations](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%931.md)
- [42 U.S.C. § 300g–2 State primary enforcement responsibility](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%932.md)
- [42 U.S.C. § 300g–3 Enforcement of drinking water regulations](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%933.md)
- [42 U.S.C. § 300g–4 Variances](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%934.md)
- [42 U.S.C. § 300g–5 Exemptions](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%935.md)
- [42 U.S.C. § 300g–6 Prohibition on use of lead pipes, solder, and flux](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%936.md)
- [42 U.S.C. § 300g–7 Monitoring of contaminants](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%937.md)
- [42 U.S.C. § 300g–8 Operator certification](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%938.md)
- [42 U.S.C. § 300g–9 Capacity development](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%939.md)
- [42 U.S.C. § 300g–10 Cybersecurity support for public water systems](https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%9310.md)
- [42 U.S.C. § 300h Regulations for State programs](https://www.frixlaw.com/law-library/statutes/usc_t42_s300h.md)
- [42 U.S.C. § 300h–1 State primary enforcement responsibility](https://www.frixlaw.com/law-library/statutes/usc_t42_s300h%E2%80%931.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/usc_t42_s300g%E2%80%931. Check the current official text before relying on it. Not legal advice.