U.S. Code
Regulations
Constitution
Sort by Rank
Titles Ascending
Titles Descending
10 per page
25 Result/page
50 Result/page
x
Search
Search guide
U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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.
Download the GovRegs app!