30 CFR § 77.1112 - Welding, cutting, or soldering with arc or flame; safeguards.
---
identifier: "/us/cfr/t30/s77.1112"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 77.1112 - Welding, cutting, or soldering with arc or flame; safeguards."
title_number: 30
title_name: "Mineral Resources"
section_number: "77.1112"
section_name: "Welding, cutting, or soldering with arc or flame; safeguards."
chapter_name: "MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR"
subchapter_number: "O"
subchapter_name: "COAL MINE SAFETY AND HEALTH"
part_number: "77"
part_name: "MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL 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: "36 FR 9364, May 22, 1971, unless otherwise noted."
cfr_part: "77"
---
# 77.1112 Welding, cutting, or soldering with arc or flame; safeguards.
(a) When welding, cutting, or soldering with arc or flame near combustible materials, suitable precautions shall be taken to insure that smoldering metal or sparks do not result in a fire.
(b) Before welding, cutting, or soldering is performed in areas likely to contain methane, an examination for methane shall be made by a qualified person with a device approved by the Secretary for detecting methane. Examinations for methane shall be made immediately before and periodically during welding, cutting, or soldering and such work shall not be permitted to commence or continue in air which contains 1.0 volume per centum or more of methane.