30 CFR § 57.6500 - Damaged initiating material.
---
identifier: "/us/cfr/t30/s57.6500"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 57.6500 - Damaged initiating material."
title_number: 30
title_name: "Mineral Resources"
section_number: "57.6500"
section_name: "Damaged initiating material."
chapter_name: "MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR"
subchapter_number: "K"
subchapter_name: "METAL AND NONMETAL MINE SAFETY AND HEALTH"
part_number: "57"
part_name: "SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 811."
regulatory_source: "50 FR 4082, Jan. 29, 1985, unless otherwise noted."
cfr_part: "57"
---
# 57.6500 Damaged initiating material.
A visual check of the completed circuit shall be made to ensure that the components are properly aligned and connected. Safety fuse, igniter cord, detonating cord, shock or gas tubing, and similar material which is kinked, bent sharply, or damaged shall not be used.