StacksVerified U.S. regulatory reference

49 CFR §229.101

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)The temperature and pressure alarms, controls and related switches of internal combustion engines shall function properly.
  2. (b)Whenever an engine has been shut down due to mechanical or other problems, a distinctive warning notice giving reason for the shut-down shall be conspicuously attached near the engine starting control until repairs have been made.
  3. (c)Wheel slip/slide protection shall be provided on a locomotive with an engine displaying a warning notice whenever required by § 229.115(b).