TEXAS COMMERCIAL RULES 2026
COMMERCIAL DRIVING SAFETY REVIEW
QUESTIONS ANSWERS VERIFIED GUIDE
◉ On a bus or trailer <80" in width, what lights are needed on the
side?
Answer: No requirements
◉ On a bus or trailer >80" in width, what color are the front turn
signals?
Answer: 2 amber clearance lamps
turn signals (white to amber)
◉ On a bus or trailer >80" in width, what lights are needed in back?
Answer: 2 red tail-lamps on each side (*trucks prior to 1960
required to have at least one taillight)
2 red stop-lamps on each side
2 red reflectors on each side
Electric turn signal on each side (amber to red)
◉ On a bus or trailer >80" in width, what lights are needed on the
side?
, Answer: Amber side marker lamp
Amber reflector
Red reflector
Red side marker lamp
◉ What is required on the front of every truck-tractor?
Answer: 2 amber clearance lamps
Head lamps
Electric turn signal (white to amber)
◉ What is required on the rear of every truck-tractor?
Answer: 2 red tail-lamps on each side
2 red stop-lamps on each side
2 red reflectors on each side
turn signals (amber to red)
◉ What is required on the side of every truck-tractor?
Answer: No requirements
◉ What is required on the front of every trailer 80" or more in
width?
Answer: 2 amber clearance lamps
COMMERCIAL DRIVING SAFETY REVIEW
QUESTIONS ANSWERS VERIFIED GUIDE
◉ On a bus or trailer <80" in width, what lights are needed on the
side?
Answer: No requirements
◉ On a bus or trailer >80" in width, what color are the front turn
signals?
Answer: 2 amber clearance lamps
turn signals (white to amber)
◉ On a bus or trailer >80" in width, what lights are needed in back?
Answer: 2 red tail-lamps on each side (*trucks prior to 1960
required to have at least one taillight)
2 red stop-lamps on each side
2 red reflectors on each side
Electric turn signal on each side (amber to red)
◉ On a bus or trailer >80" in width, what lights are needed on the
side?
, Answer: Amber side marker lamp
Amber reflector
Red reflector
Red side marker lamp
◉ What is required on the front of every truck-tractor?
Answer: 2 amber clearance lamps
Head lamps
Electric turn signal (white to amber)
◉ What is required on the rear of every truck-tractor?
Answer: 2 red tail-lamps on each side
2 red stop-lamps on each side
2 red reflectors on each side
turn signals (amber to red)
◉ What is required on the side of every truck-tractor?
Answer: No requirements
◉ What is required on the front of every trailer 80" or more in
width?
Answer: 2 amber clearance lamps
