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Regulations last checked for updates: Mar 14, 2025
Title 30 - Mineral Resources last revised: Feb 13, 2025
All Titles
Title 30
Chapter I
Part 33
Subpart B - Subpart B—Dust-Collector Requirements
§ 33.20 - Design and construction.
§ 33.21 - Modification of test equipment.
§ 33.22 - Mode of use.
§ 33.23 - Mechanical positioning of parts.
authority:
30 U.S.C. 957
,
961
source:
Schedule 25B, 25 FR 6473, July 9, 1960, unless otherwise noted.
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