StacksVerified U.S. regulatory reference

40 CFR §421.294

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Any new source subject to this subpart shall achieve the following new source performance standards:
  1. (a)Tin smelter SO2 scrubber.
  2. (b)Dealuminizing rinse.
  3. (c)Tin mud acid neutralization filtrate.
  4. (d)Tin hydroxide wash.
  5. (e)Spent electrowinning solution from new scrap.
  6. (f)Spent electrowinning solution from municipal solid waste.
  7. (g)Tin hydroxide supernatant from scrap.
  8. (h)Tin hydroxide supernatant from plating solutions and sludges.
  9. (i)Tin hydroxide filtrate.