StacksVerified U.S. regulatory reference

40 CFR §65.65

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)An owner or operator of a Group 2A process vent maintaining a TRE index value greater than 1.0 without a recovery device shall monitor based on the approved plan as specified in § 65.63(d).
  2. (b)As required in § 65.63(a) and (c), an owner or operator of a Group 2A process vent maintaining a TRE index value greater than 1.0 with a recovery device or a Group 1 process vent shall comply with § 65.142(b).