§ 33.22. Mode of use.
57 words·~1 min read·
/us/cfr/t30/s§ 33.22·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)A unit or system may be designed for use in connection with percussion and/or rotary drilling in any combination of the following drilling positions:
(1)Vertically upward,
(2)upward at angles to the vertical,
(3)horizontally, and
(4)downward.
(b)Dust-collector units may be designed for use with specific drilling equipment or at specific drilling speeds.