StacksVerified U.S. regulatory reference

30 CFR §7.90

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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:
  1. (a)Ventilation rate.
  2. (b)Rated power.
  3. (c)Rated speed.
  4. (d)High idle.
  5. (e)Maximum altitude before deration.
  6. (f)Engine model number.