Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
All TitlesTitle 40Chapter IPart 265Subpart AA - Subpart AA—Air Emission Standards for Process Vents
View all text of Subpart AA [§ 265.1030 - § 265.1049]
§ 265.1031 - Definitions.

As used in this subpart, all terms shall have the meaning given them in § 264.1031, the Act, and parts 260-266.

authority: 42 U.S.C. 6905,6906,6912,6922,6923,6924,6925,6935,6936,6937,and
source: 45 FR 33232, May 19, 1980, unless otherwise noted.
cite as: 40 CFR 265.1031
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