StacksVerified U.S. regulatory reference

40 CFR §420.28

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Compliance with the pretreatment standards for 2,3,7,8-TCDF for existing sources set forth in § 420.25(a) is required not later than October 17, 2005 whether or not the pretreatment authority issues or amends a pretreatment permit requiring such compliance.