# Primary Copper Smelting (area sources) — EPA NESHAP Source Category Applicability Crosswalk For Primary Copper Smelting (area sources), cfr subpart is 40 CFR 63 Subpart EEEEEE (6E); source type is area sources; epa category url is https://www.epa.gov/stationary-sources-air-pollution/primary-copper-smelting-area-sources-national-emissions-standards, recorded from its source on 2026-08-15. - **source category:** Primary Copper Smelting (area sources) _(verified: appears in the quote below)_ - **cfr subpart:** 40 CFR 63 Subpart EEEEEE (6E) _(verified: appears in the quote below)_ - **source type:** area sources _(our reading, not quoted from the source)_ - **epa category url:** https://www.epa.gov/stationary-sources-air-pollution/primary-copper-smelting-area-sources-national-emissions-standards _(our reading, not quoted from the source)_ ## What the source says > Primary Copper Smelting (area sources) | 40 CFR 63 Subpart EEEEEE (6E) ## Source - https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-8 Last verified: 2026-08-15. Review by: 2026-12-13. Part of [EPA NESHAP Source Category Applicability Crosswalk](https://referencesource.org/neshap-source-category-crosswalk/).