Approach or time locking; where required.
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Law
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CFR 49
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Transportation
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Other Regulations Relating to Transportation
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Federal Railroad Administration, Department of Transportation
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Rules, Standards, and Instructions Governing the Installation, Inspection, Maintenance, and Repair of Signal and Train Control Systems, Devices, and Appliances
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Traffic Control Systems
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Standards
- Approach or time locking; where required.
Approach or time locking shall be provided for all controlled signals where route or direction of traffic can be changed.
[49 FR 3386, Jan. 26, 1984]
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