30 CFR 57.22608

§ 57.22608 Secondary blasting (I-A, II-A, and V-A mines).

United States · 30 CFR — Mineral Resources · Status: effective

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Citation: 30 CFR 57.22608, § 57.22608 Secondary blasting (I-A, II-A, and V-A mines), United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/133292
Permanent ID: ys:prov:133292@1
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Full text

Prior to secondary blasting, tests for methane shall be made in the mine atmosphere at blast sites by a competent person. Secondary blasting shall not be done when 0.5 percent or more methane is present.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.