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Regulations last checked for updates: May 02, 2025
Title 40 - Protection of Environment last revised: Nov 02, 2025
All Titles
Title 40
Chapter I
Part 73
Subpart D - Subpart D—Allowance Transfers
authority:
42 U.S.C. 7601
and 7651
cite as:
40 CFR 73.51
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