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Regulations last checked for updates: Feb 07, 2026
Title 40 - Protection of Environment last revised: Dec 22, 2026
All Titles
Title 40
Chapter I
Part 261
Subpart A - Subpart A—General
authority:
42 U.S.C. 6905
,
6912
,
6921
,
6922
,
6924
source:
45 FR 33119, May 19, 1980, unless otherwise noted.
cite as:
40 CFR 261.5
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