U.S. Code of Federal Regulations

Regulations most recently checked for updates: Sep 16, 2025

All TitlesTitle 30Chapter IPart 33Subpart C - Subpart C—Test Requirements
§ 33.30 - Test site.
§ 33.31 - Test space.
§ 33.32 - Determination of dust concentration.
§ 33.33 - Allowable limits of dust concentration.
§ 33.34 - Drilling test.
§ 33.35 - Methods of drilling; dust-collector unit.
§ 33.36 - Method of drilling; combination unit or dust-collecting system.
§ 33.37 - Test procedure.
§ 33.38 - Electrical parts.
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