Title 30
Mineral Resources
5,954 sections · 206 parts · 6 chapterseCFR snapshot through 2026-08-19
Part 33
DUST COLLECTORS FOR USE IN CONNECTION WITH ROCK DRILLING IN COAL MINES
1–26 of 26 sections
- § 33.1Purpose.
- § 33.2Definitions.
- § 33.3Consultation.
- § 33.4Types of dust collectors for which certificates of approval may be granted.
- § 33.5[Reserved]
- § 33.6Application procedures and requirements.
- § 33.7Date for conducting tests.
- § 33.8Conduct of investigations, tests, and demonstrations.
- § 33.9Certification of dust-collecting systems.
- § 33.10Certificates of approval or performance.
- § 33.11Approval plates.
- § 33.12Changes after certification.
- § 33.13Withdrawal of certification.
- § 33.20Design and construction.
- § 33.21Modification of test equipment.
- § 33.22Mode of use.
- § 33.23Mechanical positioning of parts.
- § 33.30Test site.
- § 33.31Test space.
- § 33.32Determination of dust concentration.
- § 33.33Allowable limits of dust concentration.
- § 33.34Drilling test.
- § 33.35Methods of drilling; dust-collector unit.
- § 33.36Method of drilling; combination unit or dust-collecting system.
- § 33.37Test procedure.
- § 33.38Electrical parts.