Regulatory Text
30 C.F.R. § 57.22217 — Seals and stoppings (I-A, I-B, and I-C mines).
§ 57.22217 Seals and stoppings (I-A, I-B, and I-C mines). All seals, and those stoppings that separate main intake from main return airways, shall be of substantial construction and constructed of noncombustible materials, except that stoppings constructed of brattice materials may be used in face areas.
Source: ecfr.gov · govinfo.gov — public domain
Official Source ↗
Root-LD Entity Data
◈ Machine-Readable Provenance Record
Root-LD v1.0 · boisestandard.org
Federation ID
BS-CFR30-SEC-272AAA
Entity Class
REGULATION / FEDERAL-CFR-SECTION
Domain Signature
boisestandard.org
Citation
30 C.F.R. § 57.22217
Corpus
CFR — Code of Federal Regulations
Status
✓ ACTIVE
Source
PRIMARY-SOURCE
Source Verified
✓ TRUE
Content Hash
4111b6c84aba1c79...
Semantic Edges
Pending — corpus passes queued
The regulatory text of 30 C.F.R. § 57.22217 is reproduced from the official Code of Federal Regulations as published by the Office of the Federal Register and the National Archives and Records Administration.
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Title 30 — Mineral Resources
30 C.F.R. § 1.130 C.F.R. § 1.230 C.F.R. § 1.330 C.F.R. § 3.130 C.F.R. § 5.1030 C.F.R. § 5.3030 C.F.R. § 5.4030 C.F.R. § 5.5030 C.F.R. § 6.130 C.F.R. § 6.230 C.F.R. § 6.1030 C.F.R. § 6.2030 C.F.R. § 6.3030 C.F.R. § 7.130 C.F.R. § 7.230 C.F.R. § 7.330 C.F.R. § 7.430 C.F.R. § 7.530 C.F.R. § 7.630 C.F.R. § 7.730 C.F.R. § 7.830 C.F.R. § 7.930 C.F.R. § 7.1030 C.F.R. § 7.2130 C.F.R. § 7.2230 C.F.R. § 7.2330 C.F.R. § 7.2430 C.F.R. § 7.2530 C.F.R. § 7.2630 C.F.R. § 7.27
30 C.F.R. — public domain
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