C.F.R. » Title 30 » CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR › SUBCHAPTER B—TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS › PART 33—DUST COLLECTORS FOR USE IN CONNECTION WITH ROCK DRILLING IN COAL MINES › Subpart A—General Provisions

30 C.F.R. § 33.4

Types of dust collectors for which certificates of approval may be granted

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(a) Certificates of approval will be granted only for completely assembled dust-collector or combination units; parts or subassemblies will not be approved.

(b) The following types of equipment may be approved: Dust-collector or combination units having components designed specifically to prevent dissemination of airborne dust generated by drilling into coal-mine rock strata in concentrations in excess of those hereinafter stated in § 33.33 as allowable, and to confine or control the collected dust in such manner that it may be removed or disposed of without dissemination into the mine atmosphere in quantities that would create unhygienic conditions.

Notes of Decisions
Cited in 1 case, 1982–1982 · leading case: United Mine Workers of Am. v. Miller, 291 S.E.2d 673 (W. Va. 1982).
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United Mine Workers of Am. v. Miller, 291 S.E.2d 673 (W. Va. 1982). “30 C.F.R. § 33.4 (1981); see also 30 C.F.”
Annotations are extracted automatically from the opinions in the Syfert caselaw corpus and ranked by authority, recency, and treatment. Dots show Syfertize treatment of the citing case itself.