Regulations last checked for updates: Feb 11, 2026

Title 43 - Public Lands: Interior last revised: Dec 18, 2025
§ 4.165 - Government contests; initiation of a Government contest.

The Government may initiate a contest for any cause affecting the legality or validity of any entry or settlement or mining claim.

source: 36 FR 7186, Apr. 15, 1971, unless otherwise noted.
cite as: 43 CFR 4.165