30 CFR 36.21
§ 36.21 Engine for equipment considered for certification.
United States · 30 CFR — Mineral Resources · Status: effective
Cite this
- Citation
- 30 CFR 36.21, § 36.21 Engine for equipment considered for certification, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/131978
- Permanent ID
ys:prov:131978@1- SHA-256
49f3d2751622d4eb01e6fe53721c7dbcba0d262a34f5e5847c46a8dfc1cc234b
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
Only equipment powered by a compression-ignition (diesel) engine and burning diesel fuel will be considered for approval and certification. The starting mechanism shall be actuated pneumatically, hydraulically, or by other methods acceptable to MSHA. Electric starting shall not be accepted. Engines burning other fuels or utilizing volatile fuel starting aids will not be investigated.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.