StacksVerified U.S. regulatory reference

40 CFR §421.303

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
  1. (a)Chlorination off-gas wet air pollution control.
  2. (b)Chlorination area-vent wet air pollution control.
  3. (c)TiCl4 handling wet air pollution control.
  4. (d)Reduction area wet air pollution control.
  5. (e)Melt cell wet air pollution control.
  6. (f)Chlorine liquefaction wet air pollution control.
  7. (g)Sodium reduction container reconditioning wash water.
  8. (h)Chip crushing wet air pollution control.
  9. (i)Acid leachate and rinse water.
  10. (j)Sponge crushing and screening wet air pollution control.
  11. (k)Acid pickle and wash water.
  12. (l)Scrap milling wet air pollution control.
  13. (m)Scrap detergent wash water.
  14. (n)Casting crucible wash water.
  15. (o)Casting contact cooling water.