StacksVerified U.S. regulatory reference

40 CFR §63.1091

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
This subpart requires you to comply with 40 CFR part 61, subpart FF, National Emission Standards for Benzene Waste Operations. There are some differences between the ethylene production waste requirements and those of subpart FF.