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Regulations last checked for updates: Oct 02, 2026
Title 40 - Protection of Environment last revised: Sep 29, 2026
All Titles
Title 40
Chapter I
Part 67
Subpart 0 -
authority:
Sec. 120 of the Clean Air Act, as amended,
42 U.S.C. 7420
,
unless
source:
45 FR 50117, July 28, 1980, unless otherwise noted.
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