[Code of Federal Regulations]
[Title 49, Volume 5]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR393.23]

[Page 397]
 
                        TITLE 49--TRANSPORTATION
 
                      DEPARTMENT OF TRANSPORTATION
 
PART 393_PARTS AND ACCESSORIES NECESSARY FOR SAFE OPERATION--Table of 
Contents
 
       Subpart B_Lamps, Reflective Devices, and Electrical Wiring
 
Sec.  393.23  Power supply for lamps.

    All required lamps must be powered by the electrical system of the 
motor vehicle with the exception of battery powered lamps used on 
projecting loads.

[70 FR 48046, Aug. 15, 2005]