Primary Copper Smelting
For Primary Copper Smelting, cfr subpart is 40 CFR 63 Subpart QQQ; source type is major sources; original final rule date is 2002-06-12; most recent amendment date is 2024-05-13; rtr status is completed, recorded from its source on 2026-09-29.
- source category
- Primary Copper Smelting
- cfr subpart
- 40 CFR 63 Subpart QQQ
- source type
- major sources our reading
- original final rule date
- 2002-06-12
- most recent amendment date
- 2024-05-13
- rtr status
- completed our reading
- key haps regulated
- mercury, benzene, toluene, hydrogen chloride, chlorine, polycyclic aromatic hydrocarbons, naphthalene and dioxin/furans
- epa category url
- https://www.epa.gov/stationary-sources-air-pollution/primary-copper-smelting-national-emissions-standards-hazardous-air our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
3/12/25 -- Trump Administration Announces Reconsideration of Air Rules Regulating American Energy, Manufacturing, Chemical Sectors (NESHAPs)
— epa.gov, retrieved 2026-09-29
Where each value comes from
The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.
rtr status
Primary Copper Smelting | Supplemental Proposal: 7/24/2023 Proposal: 1/11/2022 | 5/13/2024
— all from epa.gov, retrieved 2026-09-29