30 CFR § 57.6604 - Precautions during storms.

---
identifier: "/us/cfr/t30/s57.6604"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 57.6604 - Precautions during storms."
title_number: 30
title_name: "Mineral Resources"
section_number: "57.6604"
section_name: "Precautions during storms."
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"
---


# 57.6604 Precautions during storms.

During the approach and progress of an electrical storm—

(a) Surface blasting operations shall be suspended and persons withdrawn from the blast area or to a safe location; or

(b) Underground electronic or electrical blasting operations that are capable of being initiated by lightning shall be suspended and all persons withdrawn from the blast area or to a safe location.

[61 FR 36801, July 12, 1996, as amended at 85 FR 2027, Jan. 14, 2020]