Title 49

PART 236 SUBPART D

Subpart D - Traffic Control Systems

• 49 U.S.C. 20102-20103, 20107, 20133, 20141, 20157, 20301-20303, 20306, 20501-20505, 20701-20703, 21301-21302, 21304; 28 U.S.C. 2461, note; and 49 CFR 1.89.
• 33 FR 19684, Dec. 25, 1968, unless otherwise noted.

49:4.1.1.1.30.4.116	SUBJGRP 116	Standards
49:4.1.1.1.30.4.116.1	SECTION 236.401	236.401 Automatic block signal system and interlocking standards applicable to traffic control systems.
49:4.1.1.1.30.4.116.2	SECTION 236.402	236.402 Signals controlled by track circuits and control operator.
49:4.1.1.1.30.4.116.3	SECTION 236.403	236.403 Signals at controlled point.
49:4.1.1.1.30.4.116.4	SECTION 236.404	236.404 Signals at adjacent control points.
49:4.1.1.1.30.4.116.5	SECTION 236.405	236.405 Track signaled for movements in both directions, change of direction of traffic.
49:4.1.1.1.30.4.116.6	SECTION 236.406	236.406 [Reserved]
49:4.1.1.1.30.4.116.7	SECTION 236.407	236.407 Approach or time locking; where required.
49:4.1.1.1.30.4.116.8	SECTION 236.408	236.408 Route locking.
49:4.1.1.1.30.4.116.9	SECTION 236.409	236.409 [Reserved]
49:4.1.1.1.30.4.116.10	SECTION 236.410	236.410 Locking, hand-operated switch; requirements.
49:4.1.1.1.30.4.117	SUBJGRP 117	Rules and Instructions
49:4.1.1.1.30.4.117.11	SECTION 236.426	236.426 Interlocking rules and instructions applicable to traffic control systems.
49:4.1.1.1.30.4.118	SUBJGRP 118	Inspection and Tests
49:4.1.1.1.30.4.118.12	SECTION 236.476	236.476 Interlocking inspections and tests applicable to traffic control systems.

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