U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
(a) Except as provided in 40 CFR 403.7 or § 437.10(b), any new source subject to this subpart must achieve the following pretreatment standards: Standards for antimony, arsenic, cadmium, chromium, cobalt, copper, lead, mercury, nickel, silver, tin, titanium, vanadium, and zinc are the same as the corresponding limitation specified in § 437.11(a)
(b) In-plant standards for cyanide are the same as the limitations specified in § 437.11(b).