Regulations last checked for updates: May 18, 2024

Title 49 - Transportation last revised: May 14, 2024
§ 234.203 - Control circuits.

All control circuits that affect the safe operation of a highway-rail grade crossing warning system shall operate on the fail-safe principle.

source: 61 FR 31806, June 20, 1996, unless otherwise noted.
cite as: 49 CFR 234.203