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Regulations last checked for updates: May 14, 2025
Title 40 - Protection of Environment last revised: Apr 14, 2028
All Titles
Title 40
Chapter I
Part 63
Subpart QQ - Subpart QQ—National Emission Standards for Surface Impoundments
§ 63.940 - Applicability.
§ 63.941 - Definitions.
§ 63.942 - Standards—Surface impoundment floating membrane cover.
§ 63.943 - Standards—Surface impoundment vented to control device.
§ 63.944 - [Reserved]
§ 63.945 - Test methods and procedures.
§ 63.946 - Inspection and monitoring requirements.
§ 63.947 - Recordkeeping requirements.
§ 63.948 - Reporting requirements.
§ 63.949 - Implementation and enforcement.
authority:
42 U.S.C. 7401
source:
57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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