The Basics of Electricity and Vehicle Lighting

CMVSS & FMVSS

Canadian Motor Vehicle Safety Standards & Federal Motor Vehicle Safety Standards

Basic equipment required on all trucks, buses, & MPVs

D E S C R I P T I O NM A N D A T O R Y     R E Q U I R E M E N T S
AreaEquipment(SAE Lens Coding)Functional PurposeQuantityColorLocationHeight mm (in.) from the ground
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Headlamps - Lower Beam(H, HR)
Attention: US: "DOT" lettering required on lens
Attention: US & Canada: light source code required on lens
Forward road illuminationMinimum 2WhiteOn the front - symmetrical - as far apart as practicable
(If 4 lamp system - outboard or above upper beams)
560-1370 (22-54)
 Headlamps - Upper Beam(H, HR)
Attention: US: "DOT" lettering required on lens
Attention: US & Canada: light source code required on lens
Forward road illuminationMinimum 2WhiteOn the front - symmetrical
( If 4 lamp system - inboard or below lower beams )
560-1370 (22-54)
 Parking Lamps-Attention: Required only on vehicles less than 2032mm wide(P)Indicate parked vehicleMinimum 2White or YellowFront - symmetrical - as far apart as practicable380-1530 (15-60)
 Daytime Running Lamps -
Attention: for Canada required, for US optional.
(Y2)
Attention: for US, "DRL" lettering required on lens if device is not headlamp
Indicate in-use vehicleMinimum 2White or YellowFront - symmetrical - as far apart as practicable380 (15) minimum Maximum depends on type of DRL
Front Turn Signal/Hazard Warning Lamps(l)Indicate direction of turn / identify disabled vehicleMinimum 2YellowFront - symmetrical - as far apart as practicable380-2110 (15-83)
Front Clearance Lamps-
Attention: Required for vehicles 2032mm wide or wider
(P2, PC* or P3*,PC2)
*photometrically certified at installation angle
Show vehicle's widthMinimum 2YellowAt widest point - symmetrical - on the front or near the front - facing forwardAs high as practicable


top-y.gif (1240 bytes)
Front Identification Lamps (ID) (P2 or P3)Indicate presence of a wide vehicleExactly 3Yellowon the front - center - horizontally spaced 150 mm (6 in.) to 300 mm (12 in.) apartAs high as practicable or on top of cab
Front Side Marker Lamps(P2, PC* or P3 ,PC2*)
*photometrically certified at installation angle
Minimum 2YellowEach side at front - as far forward as practicable380 (15) minimum
Front Side Reflex Reflectors(A)Front and Rear side marker lamps / sideMinimum 2YellowAt front - symmetrical - as far forward as practicable - facing sideward380-1530 (15-60)
Rear Side Marker Lamps **(P2, PC* or P3, PC2*)
*photometrically certified at installation angle
reflex reflector indicate vehicle's presence and lengthMinimum 2RedEach side at rear - as far back as practicable380 (15) minimum
Rear Side Reflex
Reflectors
**
** not required on Truck Tractors
(A)Minimum 2RedEach side at rear - as far back as practicable - facing sideward380-1530 (15-60)
Rear Clearance Lamps
Attention:
Required for vehicles 2032mm wide or wider, but not required on Truck Tractors
(P2, PC* or P3, PC2*)
*photometrically certified at installation angle
Show vehicle's width -
MAY NOT be combined with tail lamps
Minimum 2RedAt widest point - symmetrical - on the rear or near the rear - facing rearwardAs high as practicable-may be lower only if rear ID lamps are at the top

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Rear Identification Lamps
(ID)
Attention:
Required for vehicles 2032mm wide or wider, but not required on Truck Tractors
(P2 or P3 )Indicate presence of a wide vehicleExactly 3RedRear - center - horizontally spaced 150 mm (6 in.) to 300 mm (12 in.) apart, facing rearwardin Canada : at the top - maybe lower if door header narrower than 25mm
in USA: as high as practicable

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Tail Lamps(T)Indicate vehicle's presence and widthMinimum 2RedOn the rear - symmetrical - as far apart as practicable380-1830 (15-72)
 Stop Lamps(S)Indicate brakingMinimum 2RedOn the rear - symmetrical - as far apart as practicable380-1830 (15-72)
 Rear Turn Signal/Hazard Warning Lamps(I)Indicate direction of turn/ identifies disabled veh.Minimum 2Red or YellowOn the rear - symmetrical - as far apart as practicable380-2110 (15-83)
 Rear Reflex Reflectors(A)Show vehicle's presence and widthMinimum 2RedOn the rear - symmetrical - as far apart as practicable - facing rearward380-1530 (15-60)
Backup Lamp(R)Illuminate ground behind the vehicle and alert road usersMinimum 1WhiteRearNo requirement

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License Plate Lamp(s)(L)Illuminates license plateMinimum 1WhiteOn the rear - above or at the sides of license plateNo requirement
Center High Mounted Stop Lamp
Attention:
Required for vehicles less than 2032mm wide and 4536kg
(U3)Indicates brakingMinimum 1RedOn the rear - centerline of the vehicle860 (34) minimum

Additional Equipment For Specific Vehicles

VEHICLES 9.1 m (30 ft.) LONG OR LONGER

D E S C R I P T I O NM A N D A T O R Y     R E Q U I R E M E N T S
AreaEquipment(SAE Lens Coding)Functional PurposeQuantityColorLocationHeight mm (in.)
from the ground
Intermediate Side Marker Lamps(P2 or PC)Indicate presence of a long vehicleMinimum 2YellowEach side near center380 (15) minimum

top-y.gif (1240 bytes)
Intermediate Side Reflex Reflectors(A)Indicate presence of a long vehicleMinimum 2YellowEach side near center - facing sideward380-1530 (15-60)

TRUCK TRACTORS

D E S C R I P T I O NM A N D A T O R Y     R E Q U I R E M E N T S
AreaConspicuity TreatmentDOT CodingQuantityColorLocationHeightOptions
Rear Upper Body MarkingDOT-C, DOT-C2, DOT-C3, or DOT-C4Exactly 2 pairs of 300mm long stripsWhiteRear upper corners of cab - facing rearwardAs high as practicable excluding fairings


top-s.gif (1235 bytes)
Rear MarkingDOT-C, DOT-C2, DOT-C3, or DOT-C4Exactly 2 sections of min. 600mm eachRed/WhiteRear - facing rearward - on fenders, on mud flaps brackets, or within 300mm below of the top of mud flapsAs horizontal as practicable and not higher than 1525 mm from the groundIf mud flaps not used - on the cab or frame mounted brackets

Basic equipment required on all trailers

D E S C R I P T I O NM A N D A T O R Y    R E Q U I R E M E N T S
AreaEquipment(SAE Lens Coding)Functional PurposeQuantityColorLocationHeight mm (in.) from the ground
o-1.gif
top-o.gif
Tail Lamps(T)Indicate vehicle's presence and widthMinimum 2RedOn the rear - symmetrical - as far apart as practicable380-1830 (15-72)
Stop Lamps(S)Indicate brakingMinimum 2RedOn the rear - symmetrical - as far apart as practicable380-1830 (15-72)
Rear Turn Signal Lamps(I)Indicate direction of turnMinimum 2Red or YellowOn the rear - symmetrical - as far apart as practicable380-2110 (15-83)
Rear Reflex Reflectors(A)Indicate vehicle's presence and widthMinimum 2RedOn the rear - symmetrical - as far apart as practicable- facing rearward380-1530 (15-60)
c-2.gif
top-c.gif
License Plate Lamp(s) (L)Illuminates license plateMinimum 1WhiteOn the rear - above or at the sides of license plateNo requirement
o-3.gif

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Rear Side Marker Lamps (P2,PC* or P3, PC2*)
*photometrically certified at installation angle
Front and rear side marker lamps / side reflex reflectors indicate vehicle's presence and length Minimum 2RedEach side at rear - as far back as practicable380-1530 (15-60) no max. for veh. under 2.032m(80") wide
Rear Side Reflex Reflectors(A)Minimum 2RedEach side at rear - as far back as practicable facing sideward380-1530 (15-60)
y-4.gif
y-a.gif
Front Side Marker Lamps(P2, PC* or P3, PC2*)
* photometrically certified at installation angle
Front and rear side marker lamps / side reflex reflectors indicate vehicle's presence and length Minimum 2YellowEach side at front - as far forward as practicable380 (15) minimum
y-b.gif
top-y.gif
Front Side Reflex Reflectors(A)Minimum 2YellowEach side at front - as far forward as practicable facing sideward380-1530 (15-60)

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 NM A N D A T O R Y    R E Q U I R E M E N T S
AreaEquipment (SAE Lens Coding)Functional PurposeQuantityColorLocationHeight mm (in.) from the ground
y-5.gif
y-a.gif
Intermediate Side Marker Lamps(P2 or P3)Indicate presence of a long vehicleMinimum 2YellowEach side near center - facing sideward380(15) minimum
y-b.gif
top-y.gif
Intermediate Side Reflex Reflectors(A)Indicate presence of a long vehicleMinimum 2YellowEach side near center - facing sideward380-1530 (15-60)

Width 2.032 m (80 in.) or Wider

D E S C R I P T I O NM A N D A T O R Y    R E Q U I R E M E N T S
AreaEquipment(SAE Lens Coding)Functional PurposeQuantityColorLocationHeight
o-6.gifRear Clearance Lamps(P2, PC*or P3, PC2*)
* photometrically certified at installation angle
Show vehicle's width -
MAY NOT be combined with tail lamps
Minimum 2RedAt widest point - symmetrical - on the rear or near the rear - facing rearwardAs high as practicable - may be lower only if ID lamps are at the top
o-7.gif

top-o.gif

Rear Identification Lamps(P2 or P3)Indicate presence of a wide vehicleExactly 3RedOn the rear - center, facing rearward - horizontally spaced 150 mm (6 in.) to 300 mm (12 in.) apartin Canada : at the top - maybe lower if door header narrower than 25 mm
in USA: as high as practicable
y-8.gif
top-y.gif
Front Clearance Lamps (P2, PC*or P3, PC2*)
* photometrically certified at installation angle
Show vehicle's widthMinimum 2YellowAt widest point - symmetrical - as far forward as practicable - facing forwardAs high as practicable

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 NM A N D A T O R Y    R E Q U I R E M E N T S
AreaConspicuity TreatmentDOT CodingQuantityColorLocationHeightOPTIONS
s-9.gifRear Upper Body MarkingDOT-C,
DOT-C2,
DOT-C3, or
DOT-C4
Exactly 2 pairs of 300mm long stripsWhiteOn the rear upper corners - facing rearwardAt the topReflex 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.

s-10.gifBumper Bar MarkingContinuousRed/WhiteOn the rear bumper bar's horizontal element - full width - facing rearwardNo requirement
s-11.gif

top-s.gif

Rear Lower Body MarkingDOT-C,
DOT-C2,
DOT-C3, or
DOT-C4
ContinuousRed/White see optionsOn the rear - full width of the vehicle - facing rearwardAs horizontal as practicable and as close as practicable to the range of 375 to 1525 mm from the ground
s-12.gifSide Markingsee locationRed/White see optionsEach 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 practicableAs horizontal as practicable and as close as practicable to the range of 375 to 1525 mm from the ground

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.