30 C.F.R. § 33.23 Mechanical positioning of parts.
Title 30 - Mineral Resources
All parts of a unit that are essential to the dust-collection feature shall be provided with suitable mechanical means for positioning and maintaining such parts properly in relation to the stratum being drilled.
Title 30: Mineral Resources
PART 33—DUST COLLECTORS FOR USE IN CONNECTION WITH ROCK DRILLING IN COAL MINES
Subpart B—Dust-Collector Requirements
§ 33.23 Mechanical positioning of parts.
