30 C.F.R. § 75.1101-12 Equivalent dry-pipe system.
Title 30 - Mineral Resources
Where water sprinkler systems are installed to protect main and secondary belt conveyor drives and freezing temperatures prevail, an equivalent dry-pipe system may be installed.
Title 30: Mineral Resources
PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
Subpart L—Fire Protection
§ 75.1101-12 Equivalent dry-pipe system.
