StacksVerified U.S. regulatory reference

40 CFR §464.41

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
For the purpose of this subpart:
  1. (a)Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§ 464.45) and PSNS (§ 464.46) for the zinc subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:
    1. (1)Casting Quench (§§ 464.45(a) and 464.46(a)):
    2. (2)Die Casting (§§ 465.45(b) and 464.46(b)):
    3. (3)Melting Furnace Scrubber (§§ 464.45(c) and 464.46(c)):
    4. (4)Mold Cooling (§§ 464.45(d) and 464.46(d)):