30 CFR 57.5045 - Posting of inactive workings.

Regulations last checked for updates: Feb 12, 2026

Title 30 - Mineral Resources last revised: Jan 27, 2026

View all text of Subpart D [§ 57.5001 - § 57.5075]

§ 57.5045 - Posting of inactive workings.

Inactive workings in which radon daughter concentrations are above 1.0 WL, shall be posted against unauthorized entry and designated by signs indicating them as areas in which approved respirators shall be worn.

authority: 30 U.S.C. 811.

source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.

cite as: 30 CFR 57.5045