StacksVerified U.S. regulatory reference

40 CFR §63.1083

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The provisions of this subpart apply to your heat exchange system if you own or operate an ethylene production unit expressly referenced to this subpart XX from subpart YY of this part. The provisions of subpart A (General Provisions) of this part do not apply to this subpart except as specified in subpart YY of this part.