StacksVerified U.S. regulatory reference

40 CFR §63.4680

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) for wood building products surface coating sources. This subpart also establishes requirements to demonstrate initial and continuous compliance with the emission limitations.