Frequent Questions

What is the expedited approval process for drinking water analytical methods?

On April 10, 2007, EPA announced its intent to implement an expedited process for approving alternative testing methods for existing regulations for drinking water contaminants (72 FR 17902).  The Safe Drinking Water Act (SDWA) authorizes EPA to approve the use of alternative testing methods through publication of a notice in the Federal Register instead of through rulemaking procedures.  EPA plans to use this streamlined authority to make additional methods available for analyzing drinking water compliance and unregulated contaminant monitoring samples.  This expedited approach will provide 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.  EPA compiles a list of the alternate test methods that have been approved for analyses under the SDWA in 40 CFR Part 141, Subpart C, Appendix A.

Additional information about the expedited approval process, including a list of Federal Register notices and a list of methods approved under the expedited process, is available at
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