30 CFR § 57.4100 - Smoking and use of open flames.

---
identifier: "/us/cfr/t30/s57.4100"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 57.4100 - Smoking and use of open flames."
title_number: 30
title_name: "Mineral Resources"
section_number: "57.4100"
section_name: "Smoking and use of open flames."
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"
---


# 57.4100 Smoking and use of open flames.

No person shall smoke or use an open flame where flammable or combustible liquids, including greases, or flammable gases are—

(a) Used or transported in a manner that could create a fire hazard; or

(b) Stored or handled.