StacksVerified U.S. regulatory reference

49 CFR §236.512

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The automatic cab signal system shall be arranged so that when a locomotive enters or is within a block, wherein any condition described in § 236.205 obtains, the cab signals shall indicate “Proceed at Restricted Speed.”