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Regulations last checked for updates: May 23, 2025
Title 40 - Protection of Environment last revised: Apr 23, 2028
All Titles
Title 40
Chapter I
Part 73
Subpart A - Subpart A—Background and Summary
§ 73.1 - Purpose and scope.
§ 73.2 - Applicability.
§ 73.3 - General.
authority:
42 U.S.C. 7601
and 7651
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