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Regulations last checked for updates: Dec 15, 2025
Title 40 - Protection of Environment last revised: Dec 05, 2025
All Titles
Title 40
Chapter I
Part 439
Subpart 0 -
authority:
33 U.S.C. 1311
,
1314
,
1316
,
1317
,
1318
,
1342
source:
48 FR 49821, Oct. 27, 1983, unless otherwise noted.
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