Regulations last checked for updates: May 01, 2025

Title 30 - Mineral Resources last revised: Apr 14, 2025
§ 7.90 - Approval marking.

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.

authority: 30 U.S.C. 957.
source: 53 FR 23500, June 22, 1988, unless otherwise noted.
cite as: 30 CFR 7.90