§234.253. Flashing light units and lamp voltage.
49 C.F.R. § 234.253
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.
Lamp voltage shall be tested when installed and at least once every 12 months thereafter.
Each flashing light unit shall be inspected for proper visibility, dirt and damage to roundels and reflectors at least once each month.
Notes, amendments, and revision history
Authority
Authority: 49 U.S.C. 20103, 20107, 20152, 20160, 21301, 21304, 21311, 22907 note; 28 U.S.C. 2461 note; and 49 CFR 1.89.
Source
Source: 61 FR 31806, June 20, 1996, unless otherwise noted.