1. Regulations
  2. title 30
  3. chapter I
  4. part 57
  5. subpart D
  6. subjgrp 157
  7. § 57.5045

View all text of Subjgrp 157 [§ 57.5037 - § 57.5047]

§ 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