DOT Requirements
TRUCKS, BUSES, MPVs: FEDERAL LIGHTING EQUIPMENT LOCATION REQUIREMENTS
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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 by 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 TRUCKS, BUSES & MPVs
| DESCRIPTION | MANDATORY REQUIREMENTS | ||||||
| Area | Equipment | (SAE Lens Coding) | Functional Purpose |
Quantity | Color | Location | Height mm (in.) from the ground |
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Headlamps - Lower Beam |
(H, HR) |
Forward road illumination |
Minimum 2 |
White |
On the front - symmetrical - as far apart as practicable |
560-1370 (22-54) |
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Headlamps - Upper Beam |
(H, HR) |
Forward road illumination |
Minimum 2 |
White |
On the front - symmetrical |
560-1370 (22-54) |
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Parking Lamps-Attention: Required only on vehicles less than 2032mm wide |
(P) |
Indicate parked vehicle |
Minimum 2 |
White or Yellow |
Front - symmetrical - as far apart as practicable |
380-1530 (15-60) |
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Daytime Running Lamps - |
(Y2) |
Indicate in-use vehicle |
Minimum 2 |
White or Yellow |
Front - symmetrical - as far apart as practicable |
380 (15) minimum Maximum depends on type of DRL |
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Front Turn Signal/Hazard Warning Lamps |
( l) |
Indicate direction of turn / identify disabled vehicle |
Minimum 2 |
Yellow |
Front - symmetrical - as far apart as practicable |
380-2110 (15-83) |
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Front Clearance Lamps- |
( P2, PC* or P3*,PC2) |
Show vehicle's width |
Minimum 2 |
Yellow |
At widest point - symmetrical - on the front or near the front - facing forward |
As high as practicable |
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Front Identification Lamps (ID) |
(P2 or P3) |
Indicate presence of a wide vehicle |
Exactly 3 |
Yellow |
on the front - center - horizontally spaced 150 mm (6 in.) to 300 mm (12 in.) apart |
As high as practicable or on top of cab |
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Front Side Marker Lamps |
( P2, PC* or P3 ,PC2*) |
|
Minimum 2 |
Yellow |
Each side at front - as far forward as practicable |
380 (15) minimum |
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Front Side Reflex Reflectors |
(A) |
Front and Rear side marker lamps / side |
Minimum 2 |
Yellow |
At front - symmetrical - as far forward as practicable - facing sideward |
380-1530 (15-60) |
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Rear Side Marker Lamps ** |
(P2, PC* or P3, PC2*) |
reflex reflector indicate vehicle's presence and length |
Minimum 2 |
Red |
Each side at rear - as far back as practicable |
380 (15) minimum |
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Rear Side Reflex |
(A) |
|
Minimum 2 |
Red |
Each side at rear - as far back as practicable - facing sideward |
380-1530 (15-60) |
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Rear Clearance Lamps |
(P2, PC* or P3, PC2*) |
Show vehicle's width - |
Minimum 2 |
Red |
At widest point - symmetrical - on the rear or near the rear - facing rearward |
As high as practicable-may be lower only if rear ID lamps are at the top |
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Rear Identification Lamps |
(P2 or P3 ) |
Indicate presence of a wide vehicle |
Exactly 3 |
Red |
Rear - center - horizontally spaced 150 mm (6 in.) to 300 mm (12 in.) apart, facing rearward |
in Canada : at the top - maybe lower if door header narrower than 25mm |
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8 |
Tail Lamps |
(T) |
Indicate vehicle's presence and width |
Minimum 2 |
Red |
On the rear - symmetrical - as far apart as practicable |
380-1830 (15-72) |
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Stop Lamps |
(S) |
Indicate braking |
Minimum 2 |
Red |
On the rear - symmetrical - as far apart as practicable |
380-1830 (15-72) |
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Rear Turn Signal/Hazard Warning Lamps |
( I) |
Indicate direction of turn/ identifies disabled veh. |
Minimum 2 |
Red or Yellow |
On the rear - symmetrical - as far apart as practicable |
380-2110 (15-83) |
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Rear Reflex Reflectors |
(A) |
Show vehicle's presence and width |
Minimum 2 |
Red |
On the rear - symmetrical - as far apart as practicable - facing rearward |
380-1530 (15-60) |
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Backup Lamp |
(R) |
Illuminate ground behind the vehicle and alert road users |
Minimum 1 |
White |
Rear |
No requirement |
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License Plate Lamp(s) |
(L) |
Illuminates license plate |
Minimum 1 |
White |
On the rear - above or at the sides of license plate |
No requirement |
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Center High Mounted Stop Lamp |
(U3) |
Indicates braking |
Minimum 1 |
Red |
On the rear - centerline of the vehicle |
860 (34) minimum |
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VEHICLES 9.1 m (30 ft.) LONG OR LONGER
| DESCRIPTION | MANDATORY REQUIREMENTS | ||||||
|
Area |
Equipment |
(SAE Lens Coding) |
Functional |
Quantity |
Color |
Location |
Height mm (in.) |
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Intermediate Side Marker Lamps |
(P2 or PC) |
Indicate presence of a long vehicle |
Minimum 2 |
Yellow |
Each side near center |
380 (15) minimum |
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Intermediate Side Reflex Reflectors |
(A) |
Indicate presence of a long vehicle |
Minimum 2 |
Yellow |
Each side near center - facing sideward |
380-1530 (15-60) |
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TRUCK TRACTORS
| DESCRIPTION | MANDATORY REQUIREMENTS | |
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| Area | Conspicuity Treatment | DOT Code | Quantity | Color | Location | Height | Options |
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Rear Upper Body Marking |
DOT-C, DOT-C2, DOT-C3, or DOT-C4 |
Exactly 2 pairs of 300mm long strips |
White |
Rear upper corners of cab - facing rearward |
As high as practicable excluding fairings |
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Rear Marking |
DOT-C, DOT-C2, DOT-C3, or DOT-C4 |
Exactly 2 sections of min. 600mm each |
Red/White |
Rear - facing rearward - on fenders, on mud flaps brackets, or within 300mm below of the top of mud flaps |
As horizontal as practicable and not higher than 1525 mm from the ground |
If mud flaps not used - on the cab or frame mounted brackets |
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