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TRAILERS: FEDERAL LIGHTING EQUIPMENT LOCATION REQUIREMENTS
NOTE: All information provided the National Highway Traffic Safety Administration. For full and up-to-date information, visit http://www.nhtsa.gov
| IMPORTANT NOTE:Every lamp, reflex reflector, and conspicuity treatment (device) must be permanently attached in the location specified below and must comply with all applicable requirements prescribed for it FMVSS/CMVSS 108. The face of any device on the front/rear and sides should be, respectively perpendicular and parallel to vehicle centerline, unless it is photometrically certified at installation angle. No part of the vehicle shall prevent any device from meeting its prescribed requirements unless an auxiliary device meeting all prescribed requirements is installed.
IN CANADA: Manufacturers and importers of vehicles must have the proper certification test records demonstrating compliance of lighting components with all prescribed requirements. |
BASIC EQUIPMENT REQUIRED ON ALL TRAILERS
ADDITIONAL EQUIPMENT FOR TRAILERS
EXCEEDING THE FOLLOWING PARAMETERS
LENGTH 9.1 m (30 ft.) OR LONGER
| D E S C R I P T I O N |
M A N D A T O R Y
R E Q U I R E M E N T S |
| Area |
Equipment |
(SAE Lens Coding) |
Functional
Purpose |
Quantity |
Color |
Location |
Height mm (in.)
from the ground |
 |
Intermediate Side Marker Lamps |
(P2 or P3) |
Indicate presence of a long vehicle |
Minimum 2 |
Yellow |
Each side near center - facing sideward |
380 (15) minimum |
|
Intermediate Side Reflex Reflectors |
(A) |
Indicate presence of a long vehicle |
Minimum 2 |
Yellow |
Each side near center - facing sideward |
380-1530 (15-60) |
WIDTH 2.032 m (80 in.) OR WIDER
WIDTH 2.032 m (80 in.) OR WIDER AND GVWR 4536 kg (10,000 lb.) OR MORE
| D E S C R I P T I O N |
M A N D A T O R Y R E Q U I R E M E N T S |
| Area |
Conspicuity
Treatment |
DOT Coding |
Quantity |
Color |
Location |
Height |
OPTIONS |
 |
Rear Upper Body Marking |
DOT-C,
DOT-C2,
DOT-C3, or
DOT-C4 |
Exactly
2 pairs of 300mm long strips |
White |
On the rear upper corners - facing rearward |
At the top |
Reflex reflectors may not be required if they are replaced, in their required location, with conspicuity treatment
Optional in Canada
Rear lower body and side conspicuity treatment may also be solid white, solid yellow, or white and yellow. |
 |
Bumper Bar Marking |
Continuous |
Red/White |
On the rear bumper bar's horizontal element - full width - facing rearward |
No requirement |
|
Rear Lower Body Marking |
DOT-C,
DOT-C2,
DOT-C3, or
DOT-C4 |
Continuous |
Red/White see options |
On the rear - full width of the vehicle - facing rearward |
As horizontal as practicable and as close as practicable to the range of 375 to 1525 mm from the ground |
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Side Marking |
see location |
Red/White see options |
Each side - facing sideward - continuous, or evenly spaced over minimum of 50% of length, starts and ends as close to the front and rear or vehicle as practicable |
As horizontal as practicable and as close as practicable to the range of 375 to 1525 mm from the ground |
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