1. Regulations
  2. title 30
  3. chapter I
  4. part 57
  5. subpart T
  6. subjgrp 210
  7. § 57.22602

View all text of Subjgrp 210 [§ 57.22601 - § 57.22608]

§ 57.22602 - Blasting from the surface (I-C mines).

(a) All blasting shall be initiated from the surface after all persons are out of the mine and any connecting mines.

(b) Persons shall not enter the mine until a competent person has examined the blast sites and methane concentrations are less than 0.5 percent.

AUTHORITY: 30 U.S.C. 811.

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

CITE AS: 30 CFR 57.22602