30 C.F.R. § 7.90 Approval marking.
Title 30 - Mineral Resources
Each approved diesel engine shall be identified by a legible and permanent approval marking inscribed with the assigned MSHA approval number and securely attached to the diesel engine. The marking shall also contain the following information: (a) Ventilation rate. (b) Rated power. (c) Rated speed. (d) High idle. (e) Maximum altitude before deration. (f) Engine model number.
Title 30: Mineral Resources
PART 7—TESTING BY APPLICANT OR THIRD PARTY
Subpart E—Diesel Engines Intended for Use in Underground Coal Mines
§ 7.90 Approval marking.
