About GPO   |   Newsroom/Media   |   Congressional Relations   |   Inspector General   |   Careers   |   Contact   |   askGPO   |   Help  
 
Home   |   Customers   |   Vendors   |   Libraries  

The Electronic Code of Federal Regulations (e-CFR) is a regularly updated, unofficial editorial compilation of CFR material and Federal Register amendments produced by the National Archives and Records Administration's Office of the Federal Register (OFR) and the Government Printing Office.

Parallel Table of Authorities and Rules for the Code of Federal Regulations and the United States Code
Text | PDF

Find, review, and submit comments on Federal rules that are open for comment and published in the Federal Register using Regulations.gov.

Purchase individual CFR titles from the U.S. Government Online Bookstore.

Find issues of the CFR (including issues prior to 1996) at a local Federal depository library.

[2]
 
 

Electronic Code of Federal Regulations

e-CFR Data is current as of September 30, 2014

Amendment


49 CFR--PART 571

View Printed Federal Register page 76 FR 23510 in PDF format.

Amendment(s) published April 27, 2011, in 76 FR 23510

Effective Dates: December 1,2012

3. Effective December 1, 2012, §571.108 is amended by revising Table V-b: Visibility Requirements of Installed Lighting Devices—Lens Area Visibility Option and Table V-c: Visibility Requirements of Installed Lighting Devices—Luminous Intensity Visibility Option, as added at 72 FR 68269 (December 4, 2007), effective September 1, 2008, delayed until December 1, 2009, at 73 FR 50730 (August 28, 2008), and further delayed until December 1, 2012 at 74 FR 58214 (November 12, 2009), to read as follows:

§571.108   Standard No. 108; Lamps, reflective devices, and associated equipment.

*   *   *   *   *

Table V-b_Visibility Requirements of Installed Lighting Devices_Lens Area Visibility Option
--------------------------------------------------------------------------------------------------------------------------------------------------------
 
--------------------------------------------------------------------------------------------------------------------------------------------------------
Lighting device                      Corner points\1 2\....    Required visibility
                                    ----------------------------------------------------------------------------------------------
                                     Motorcycle............  All other.............
--------------------------------------------------------------------------------------------------------------------------------------------------------
Turn signal lamp \3\...............  15° UP-20° IB.  15° UP-45° OB.  15° UP-45° IB  15° UP-45° OB  Unobstructed minimum
                                     15° DOWN-20°    15° DOWN-45°    15° DOWN-45°   15° DOWN-45°    effective projected
                                      IB.                     OB.                     IB.                    OB.
Stop lamp..........................  15° UP-45°      15° UP-45°      15° UP-45° IB  15° UP-45° OB   luminous lens area
                                      RIGHT \4\.              LEFT \4\.
                                     15° DOWN-45°    15° DOWN-45°    15° DOWN-45°   15° DOWN-45°    of 1,250 sq mm in
                                      RIGHT \4\.              LEFT \4\.               IB.                    OB.                    any
Taillamp...........................  15° UP-45°      15° UP-45°      15° UP-45° IB  15° UP-45° OB   direction throughout
                                      RIGHT \5\.              LEFT \5\.
                                     15° DOWN-45°    15° DOWN-45°    15° DOWN-45°   15° DOWN-45°    the pattern defined
                                      RIGHT \5\.              LEFT \5\.               IB.                    OB.                    by
Parking lamp.......................  No Requirement........  No Requirement........  15° UP-45° IB  15° UP-45° OB   the specified corner
                                     No Requirement........  No Requirement........  15° DOWN-45°   15° DOWN-45°    points.
                                                                                      IB.                    OB.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ IB indicates an inboard direction (toward the vehicle's longitudinal centerline) and OB indicates an outboard direction.
\2\ Where a lamp is mounted with its axis of reference less than 750 mm above the road surface, the vertical test point angles located below the
  horizontal plane subject to visibility requirements may be reduced to 5° down.
\3\ Where more than one lamp or optical area is lighted at the front on each side of a multipurpose passenger vehicle, truck, trailer, or bus, of 2032
  mm or more overall width, only one such area need comply.
\4\ If a multiple lamp arrangement is used for a motorcycle stop lamp, the inboard angle for each lamp shall be 10 degrees.
\5\ If a multiple lamp arrangement is used for a motorcycle tail lamp, the inboard angle for each lamp shall be 45 degrees.
Table V-c_Visibility Requirements of Installed Lighting Devices_Luminous Intensity Visibility Option
--------------------------------------------------------------------------------------------------------------------------------------------------------
 
--------------------------------------------------------------------------------------------------------------------------------------------------------
Lighting device                    Corner points 1 2...   Required visibility
                                                            Minimum luminous
                                                            intensity in any
                                                               direction
                                                             throughout the
                                                           pattern defined by
                                                             the specified
                                                             corner points.
                                  ----------------------------------------------------------------------------------------
                                   Motorcycle..........  All Other...........  Candela.............
--------------------------------------------------------------------------------------------------------------------------------------------------------
Turn signal lamp.................  15° UP-20°    15° UP-80°    15° UP-45°    15° UP-80°                             0.3
                                    IB.                   OB.                   IB.                   OB.
                                   15° DOWN-20°  15° DOWN-80°  15° DOWN-45°  15° DOWN-80°
                                    IB.                   OB.                   IB.                   OB.
Stop lamp........................  15° UP-45°    15° UP-45°    15° UP-45°    15° UP-45°                             0.3
                                    RIGHT \4\.            LEFT \4\.             IB.                   OB.
                                   15° DOWN-45°  15° DOWN-45°  15° DOWN-45°  15° DOWN-45°
                                    RIGHT \4\.            LEFT \4\.             IB.                   OB.
Taillamp \3\.....................  15° UP-80°    15° UP-80°    15° UP-45°    15° UP-80°                            0.05
                                    RIGHT \5\.            LEFT \5\.             IB.                   OB.
                                   15° DOWN-80°  15° DOWN-80°  15° DOWN-45°  15° DOWN-80°
                                    RIGHT \5\.            LEFT \5\.             IB.                   OB.
Parking lamp.....................  No Requirement......  No Requirement......  15° UP-45°    15° UP-80°                            0.05
                                                                                IB.                   OB.
                                   No Requirement......  No Requirement......  15° DOWN-45°  15° DOWN-80°
                                                                                IB.                   OB.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ IB indicates an inboard direction (toward the vehicle's longitudinal centerline) and OB indicates an outboard direction.
\2\ Where a lamp is mounted with its axis of reference less than 750 mm above the road surface, the vertical test point angles located below the
  horizontal plane subject to visibility requirements may be reduced to 5° down
\3\ Inboard and outboard corner points are 80° for a single taillamp installed on a motorcycle
\4\ If a multiple lamp arrangement is used for a motorcycle stop lamp, the inboard angle for each lamp shall be 10 degrees.
\5\ If a multiple lamp arrangement is used for a motorcycle tail lamp, the inboard angle for each lamp shall be 45 degrees.


For questions or comments regarding e-CFR editorial content, features, or design, email ecfr@nara.gov.
For questions concerning e-CFR programming and delivery issues, email webteam@gpo.gov.