Home > Trailer Light Guide
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Under 80 Inches |
Over 80 Inches |
Click On Number To View The Corresponding Light
TRAILER LIGHTING REQUIREMENTS
FMVSS 108
All Trailers
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Left Side |
# |
Function |
Color |
Visibility Requirements |
Right Side |
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1 |
Tail |
Red |
45 Degrees Left and Right
10 Degrees Up and Down |
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2 |
Stop |
Red |
45 Degrees Left and Right
10 Degrees Up and Down |
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3 |
Turn |
Red |
45 Degrees Left and Right
10 Degrees Up and Down |
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4 |
Rear Reflex |
Red |
20 Degrees Left and Right
10 Degrees Up and Down |
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5 |
Rear
Sidemarker |
Red |
45 Degrees Left and Right
10 Degrees Up and Down |
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6 |
Rear Side
Reflector |
Red |
20 Degrees Left and Right
10 Degrees Up and Down |
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7 |
Front
Sidemarker |
Amber |
45 Degrees Left and Right
10 Degrees Up and Down |
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8 |
Front Side
Reflector |
Amber |
20 Degrees Left and Right
10 Degrees Up and Down |
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9 |
Liscence
Light |
Clear |
Above or
Side Illumination |
N/A |
OVER 80" LIGHTING |
Left Side |
# |
Function |
Color |
Visibility
Requirements |
Right Side |
 |
10 |
Rear
Clearance Light |
Red |
45 Degrees Left and Right
10 Degrees Up and Down |
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11 |
Rear
Identification Light |
Red |
45 Degrees Left and Right
10 Degrees Up and Down |
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12 |
Front Clearance Light |
Amber |
45 Degrees Left and Right
10 Degrees Up and Down |
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Interpretations |
| A |
United States |
The front sidemarker must be mounted so that it is visible from 45 degrees left and right without obstruction from the trailer or tow vehicle to comply with NHTSA's interpretation of "as far forward as practicable." |
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