Regulations last checked for updates: Feb 16, 2025

Title 40 - Protection of Environment last revised: Nov 16, 2025
All TitlesTitle 40Chapter IPart 265Subpart K - Subpart K—Surface Impoundments
View all text of Subpart K [§ 265.220 - § 265.231]
§ 265.231 - Air emission standards.

The owner or operator shall manage all hazardous waste placed in a surface impoundment in accordance with the applicable requirements of subparts BB and CC of this part.

[61 FR 59968, Nov. 25, 1996]
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 265.231
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