40 CFR 437.15 - Pretreatment standards for existing sources (PSES).
(a) Except as provided in 40 CFR 403.7, 403.13 or 437.10(b), and no later than December 22, 2003, any existing 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).
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.