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Code of Federal Regulations

ECFRadf62f6f6cca66d

Standards

236.401Automatic block signal system and interlocking standards applicable to traffic control systems.236.402Signals controlled by track circuits and control operator.236.403Signals at controlled point.236.404Signals at adjacent control points.236.405Track signaled for movements in both directions, change of direction of traffic.236.406[Reserved]236.407Approach or time locking; where required.236.408Route locking.236.409[Reserved]236.410Locking, hand-operated switch; requirements.