40 CFR § 142.4 National Primary Drinking Water Regulations Implementation

§ 142.4 State and local authority.

Current through Aug 22, 2025 · Read all of Part 142

⚠ 4 pending changes to Part 142

Nothing in this part shall diminish any authority of a State or political subdivision to adopt or enforce any law or regulation respecting drinking water regulations or public water systems, but no such law or regulation shall relieve any person of any requirements otherwise applicable under this part.

← § 142.3 Scope.§ 142.10 Requirements for a determination of primary enforcement responsibility. →