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Regulations last checked for updates: Feb 10, 2026
Title 43 - Public Lands: Interior last revised: Dec 18, 2025
All Titles
Title 43
Chapter II
Part 3832
Subpart D - Subpart D—Tunnel Sites
authority:
30 U.S.C. 22
source:
68 FR 61069, Oct. 24, 2003, unless otherwise noted.
cite as:
43 CFR 3832.40
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