49 CFR §238.117
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
On or after November 8, 1999, all moving parts, high voltage equipment, electrical conductors and switches, and pipes carrying hot fluids or gases on all passenger equipment shall be appropriately equipped with interlocks or guards to minimize the risk of personal injury. This section does not apply to the interior of a private car.