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Regulations last checked for updates: Nov 22, 2024
Title 40 - Protection of Environment last revised: Nov 20, 2024
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Title 40
Chapter I
Part 501
Subpart C - Subpart C—Program Approval, Revision and Withdrawal
§ 501.31 - Review and approval procedures.
§ 501.32 - Procedures for revision of State programs.
§ 501.33 - Criteria for withdrawal of State programs.
§ 501.34 - Procedures for withdrawal of State programs.
authority:
33 U.S.C. 1251
source:
54 FR 18786, May 2, 1989, unless otherwise noted.
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