40 CFR 65.65 - Monitoring.

Regulations last checked for updates: May 01, 2025

Title 40 - Protection of Environment last revised: Nov 01, 2025

View all text of Subpart D [§ 65.60 - § 65.79]

§ 65.65 - Monitoring.

(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).

(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).

authority: 42 U.S.C. 7401

source: 65 FR 78285, Dec. 14, 2000, unless otherwise noted.

cite as: 40 CFR 65.65