40 CFR §63.8980
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
This subpart establishes national emission standards for hazardous air pollutants (NESHAP) and work practice standards for hazardous air pollutants (HAP) emitted from hydrochloric acid (HCl) production. This subpart also establishes requirements to demonstrate initial and continuous compliance with the emission limitations and work practice standards.