30 CFR 57.22230
§ 57.22230 Weekly testing (II-A mines).
United States · 30 CFR — Mineral Resources · Status: effective
Cite this
- Citation
- 30 CFR 57.22230, § 57.22230 Weekly testing (II-A mines), United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/133256
- Permanent ID
ys:prov:133256@1- SHA-256
017d24430b87847da21acea819fb0b9b20a96c47f9213777cd74f30014decc4b
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(a) The mine atmosphere shall be tested for methane at least once every seven days by a competent person or an atmospheric monitoring system, or a combination of the two. Such testing shall be done at the following locations:
(1) Active mining faces and benches;
(2) Main returns;
(3) Returns from idle workings;
(4) Returns from abandoned workings; and
(5) Seals.
(b) Where such examinations disclose hazardous conditions, affected persons shall be informed and corrective action shall be taken.
(c) Certification of examinations shall be made by signature and date. Certifications shall be kept for at least one year and made available to authorized representatives of the Secretary.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.