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Regulations last checked for updates: Feb 11, 2026
Title 40 - Protection of Environment last revised: Dec 22, 2026
All Titles
Title 40
Chapter I
Part 450
Subpart A - Subpart A—General Provisions
§ 450.10 - Applicability.
§ 450.11 - General definitions.
authority:
33 U.S.C. 1311
,
1312
,
1314
,
1316
,
1341
,
1342
,
1361
source:
74 FR 63057, Dec. 1, 2009, unless otherwise noted.
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