StacksVerified U.S. regulatory reference

40 CFR §461.3

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The “monthly average” regulatory values shall be the basis for the monthly average discharge in direct discharge permits and for pretreatment standards. Compliance with the monthly discharge limit is required regardless of the number of samples analyzed and averaged.