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Title 49: Transportation
Subtitle B: Other Regulations Relating to Transportation (Continued)
CHAPTER II: FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
PART 234: GRADE CROSSING SIGNAL SYSTEM SAFETY AND STATE ACTION PLANS
Subpart D: Maintenance, Inspection, and Testing
: Inspections and Tests
234.253 - Flashing light units and lamp voltage.
(a) Each flashing light unit shall be inspected when installed and at least once every twelve months for proper alignment and frequency of flashes in accordance with installation specifications.
(b) Lamp voltage shall be tested when installed and at least once every 12 months thereafter.
(c) Each flashing light unit shall be inspected for proper visibility, dirt and damage to roundels and reflectors at least once each month.
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