GUIDE COMPLETE QUESTIONS AND ANSWERS
2026
◉ What is required for drivers? Answer: MUST undergo a history and
physical by a licensed Physician, Physician Assistant, Advanced Nurse
Practitioner, DO, or Chiropractor
◉ What liability do we have? Answer: Examiner bears legal liability for
exam accuracy
◉ What is the max cert length? Answer: 2 years
◉ What does DOT stand for? Answer: Department of Transportation
◉ What does CDL stand for? Answer: CDL: Commercial Drivers
license
Commercial motor vehicle: vehicle used for commercial purposes
that...(at least 1)
1. Has a weight rating of >10,000 lbs.
2. Is used to transport hazardous materials
3. Can carry at least 16 passengers
, ◉ What is the primary goal of the DOT exam? Answer: public safety
◉ What is the 3rd highest mortality rate amoung US occupations?
Answer: truck driving
◉ What are the vision requirements of DOT-testing? Answer: -
demonstrate at least 20/40 visual acuity in each eye with or w/o
correction
-demonstrate at least 70 degrees peripheral vision in each eye
-demonstrate ability to distinguish b/w red/green/amber colors (Ishihara
test)
-demonstrate binocular vision
-use of corrective lenses MUST be noted on certificate*
◉ What test assesses for color blindness? Answer: Ishihara Test
◉ What are the hearing requirements for DOT-testing? Answer: -must
first perceive a whispered voice > or = 5 ft. from the provider (with or
w/o a hearing aid)
OR
-demonstrates average hearing loss in the better ear < or = 40 dB at 500,
1000, and 2000 Hz
-use of a hearing aid MUST be noted on certificate*