DOT CERTIFICATION EXAM 2025/2026 —
350 ACTUAL EXAM QUESTIONS & ANSWERS
WITH RATIONALES
REGULATIONS, STANDARDS & GENERAL KNOWLEDGE
1. An unrestricted Commercial Motor Vehicle Driver Medical Certificate must
be renewed:
A. Annually
B. Every two years
C. Every four years
D. Whenever the state-issued driver's license is renewed
Correct Answer: B — Every two years
Rationale: FMCSA regulations require medical certification for interstate CMV
drivers to be renewed every two years as the maximum certification period,
though examiners may certify for shorter periods if more frequent monitoring
is warranted.
2. FMCSA regulates interstate commercial operation including the:
A. Driver
B. Vehicle
C. Motor Carrier
,D. All of the above
Correct Answer: D — All of the above
Rationale: FMCSA has jurisdiction over drivers, vehicles, and motor carriers
engaged in interstate commerce to ensure comprehensive safety compliance.
3. In which regulation are the driver physical qualification standards cited?
A. 49 CFR 391.41
B. 49 CFR 391.43
C. 49 CFR 391.45
D. 49 CFR 395.1
Correct Answer: A — 49 CFR 391.41
Rationale: 49 CFR 391.41 contains the specific physical qualification
standards for drivers, while 391.43 addresses medical examiner
responsibilities.
4. In which regulation are the medical examiner's responsibilities cited?
A. 49 CFR 391.41
B. 49 CFR 391.43
C. 49 CFR 395.3
D. 49 CFR 396.9
Correct Answer: B — 49 CFR 391.43
Rationale: 49 CFR 391.43 outlines the requirements and responsibilities for
medical examiners conducting DOT physical examinations.
,5. What are the differences between medical standards and medical
guidelines?
A. Standards are recommendations; guidelines are requirements
B. Standards/regulations are law; guidelines are best practices
C. Both are legally enforceable
D. Guidelines are federal law; standards are state law
Correct Answer: B — Standards/regulations are law; guidelines are best
practices
Rationale: Medical standards are codified in regulations and are legally
binding; guidelines are advisory best practices that inform clinical judgment.
6. What objective tests and measurements are required as part of the driver
physical examination?
A. Height, weight, and BMI only
B. Vision, hearing, blood pressure, pulse, and urine dipstick
C. Complete blood count and chemistry panel
D. Chest X-ray and EKG
Correct Answer: B — Vision, hearing, blood pressure, pulse, and urine dipstick
Rationale: The required objective tests include height, weight, vision, hearing,
blood pressure, pulse, and urine dipstick for specific gravity, protein, blood,
and glucose.
7. What are the possible outcomes of the driver physical examination?
A. Certification only
, B. Disqualification only
C. Certification or disqualification
D. Conditional certification or deferral
Correct Answer: C — Certification or disqualification
Rationale: The medical examiner must determine whether the driver is
qualified (certified) or not qualified (disqualified) based on FMCSA standards.
8. To pass the interstate CMV driver vision exam, what visual acuity is
required?
A. 20/30 or better in at least one eye
B. 20/40 or better in both eyes individually and combined
C. 20/50 or better in the better eye
D. 20/60 or better with corrective lenses
Correct Answer: B — 20/40 or better in BOTH eyes individually and
combined
Rationale: Interstate CMV drivers must have distant visual acuity of at least
20/40 in each eye individually and both eyes together, with or without
corrective lenses.
9. What is the minimum requirement for peripheral vision for CMV drivers?
A. 50 degrees
B. 60 degrees
C. 70 degrees
D. 80 degrees
350 ACTUAL EXAM QUESTIONS & ANSWERS
WITH RATIONALES
REGULATIONS, STANDARDS & GENERAL KNOWLEDGE
1. An unrestricted Commercial Motor Vehicle Driver Medical Certificate must
be renewed:
A. Annually
B. Every two years
C. Every four years
D. Whenever the state-issued driver's license is renewed
Correct Answer: B — Every two years
Rationale: FMCSA regulations require medical certification for interstate CMV
drivers to be renewed every two years as the maximum certification period,
though examiners may certify for shorter periods if more frequent monitoring
is warranted.
2. FMCSA regulates interstate commercial operation including the:
A. Driver
B. Vehicle
C. Motor Carrier
,D. All of the above
Correct Answer: D — All of the above
Rationale: FMCSA has jurisdiction over drivers, vehicles, and motor carriers
engaged in interstate commerce to ensure comprehensive safety compliance.
3. In which regulation are the driver physical qualification standards cited?
A. 49 CFR 391.41
B. 49 CFR 391.43
C. 49 CFR 391.45
D. 49 CFR 395.1
Correct Answer: A — 49 CFR 391.41
Rationale: 49 CFR 391.41 contains the specific physical qualification
standards for drivers, while 391.43 addresses medical examiner
responsibilities.
4. In which regulation are the medical examiner's responsibilities cited?
A. 49 CFR 391.41
B. 49 CFR 391.43
C. 49 CFR 395.3
D. 49 CFR 396.9
Correct Answer: B — 49 CFR 391.43
Rationale: 49 CFR 391.43 outlines the requirements and responsibilities for
medical examiners conducting DOT physical examinations.
,5. What are the differences between medical standards and medical
guidelines?
A. Standards are recommendations; guidelines are requirements
B. Standards/regulations are law; guidelines are best practices
C. Both are legally enforceable
D. Guidelines are federal law; standards are state law
Correct Answer: B — Standards/regulations are law; guidelines are best
practices
Rationale: Medical standards are codified in regulations and are legally
binding; guidelines are advisory best practices that inform clinical judgment.
6. What objective tests and measurements are required as part of the driver
physical examination?
A. Height, weight, and BMI only
B. Vision, hearing, blood pressure, pulse, and urine dipstick
C. Complete blood count and chemistry panel
D. Chest X-ray and EKG
Correct Answer: B — Vision, hearing, blood pressure, pulse, and urine dipstick
Rationale: The required objective tests include height, weight, vision, hearing,
blood pressure, pulse, and urine dipstick for specific gravity, protein, blood,
and glucose.
7. What are the possible outcomes of the driver physical examination?
A. Certification only
, B. Disqualification only
C. Certification or disqualification
D. Conditional certification or deferral
Correct Answer: C — Certification or disqualification
Rationale: The medical examiner must determine whether the driver is
qualified (certified) or not qualified (disqualified) based on FMCSA standards.
8. To pass the interstate CMV driver vision exam, what visual acuity is
required?
A. 20/30 or better in at least one eye
B. 20/40 or better in both eyes individually and combined
C. 20/50 or better in the better eye
D. 20/60 or better with corrective lenses
Correct Answer: B — 20/40 or better in BOTH eyes individually and
combined
Rationale: Interstate CMV drivers must have distant visual acuity of at least
20/40 in each eye individually and both eyes together, with or without
corrective lenses.
9. What is the minimum requirement for peripheral vision for CMV drivers?
A. 50 degrees
B. 60 degrees
C. 70 degrees
D. 80 degrees
