Data / Federal rules / 2025-00464

Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures

The Environmental Protection Agency published this final rule in the Federal Register on January 16, 2025. It took effect on January 16, 2025.

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What the agency says

This action announces the Environmental Protection Agency's (EPA's) approval of alternative testing methods for use in measuring the levels of contaminants in drinking water to determine compliance with national primary drinking water regulations. The Safe Drinking Water Act authorizes EPA to approve the use of alternative testing methods through publication in the Federal Register. EPA is using this streamlined authority to make two additional methods available for analyzing drinking water samples. This expedited approach provides public water systems, laboratories, and primacy agencies with more timely access to new measurement techniques and greater flexibility in the selection of analytical methods, thereby reducing monitoring costs while maintaining public health protection.

Key facts

Document number: 2025-00464
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: January 16, 2025
Takes effect: January 16, 2025
Dates: This action is effective January 16, 2025.
Docket: EPA-HQ-OW-2024-0603; FRL-12499-01-OW
Code of Federal Regulations: 40 CFR 141
Topics: Chemicals; Environmental protection; Indians-lands; Intergovernmental relations; Reporting and recordkeeping requirements; Water supply
Pages: 5

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on chemicals · Rules on environmental protection · Rules on indians-lands · Published in January 2025

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.