On combination vehicles longer than 20 feet or wider than 80 inches, amber or yellow reflectors must be installed _________.

Special Lighting Equipment:
Second division or combination vehicles longer than 25 feet or wider than 80 inches (excluding mirrors, bumpers and other safety devices) must have special lighting equipment. The following lighting equipment is required on vehicles operated outside the limits of cities, towns or villages between sunset and sunrise:
- Two yellow or amber lights on the front of the vehicle. One light must be on each upper-front corner and visible for 500 feet.
- Three red lights on the rear of the vehicle in a horizontal line and visible for 500 feet.
- Two yellow or amber reflectors on the front of the vehicle. One reflector must be on each lower corner.
- Two red reflectors on the rear of the vehicle. One reflector must be not more than 12 inches from each lower corner.