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NRCME (DOT) Medical Examiner
Certification Exam 2026 – 2027 Update,
Questions & Answers (Verified Answers)
With Rationales | Complete A+ Guide
1. Under FMCSA regulations, who must be medically certified
to operate a commercial motor vehicle (CMV) in interstate
commerce?
• A) Any driver operating a vehicle over 10,000 lbs
• B) Any driver operating a vehicle over 26,001 lbs
GVWR, transporting hazardous materials, or carrying
16+ passengers
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• C) Any driver operating a vehicle over 26,000 lbs for
any purpose
• D) Only drivers with a history of medical conditions
✅ Answer: B
Rationale: 49 CFR 390.5 defines a CMV for interstate
commerce as: >26,001 lbs GVWR/GCWR, or any size if
carrying hazardous materials requiring placarding, or
designed to carry 16+ passengers (including driver).
2. A driver is moving intrastate but operating a vehicle that
meets interstate CMV definitions. Does the driver need an
FMCSA medical certificate?
• A) No, intrastate is exempt
• B) Yes, if the state has adopted FMCSA standards
• C) Only if crossing state lines
• D) No, if the trip is less than 150 miles
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✅ Answer: B
Rationale: Many states have adopted FMCSA medical
standards for intrastate CMV drivers. The ME must check state-
specific rules.
3. How long is a valid Medical Examiner’s Certificate (MEC),
Form MCSA-5876, typically valid for an interstate CMV
driver?
• A) 6 months
• B) 1 year
• C) 2 years
• D) 5 years
✅ Answer: C
Rationale: 49 CFR 391.43 – Maximum 2 years. May be less if
the ME determines a shorter interval based on a medical
condition.
,Page 2 of 51
NRCME (DOT) Medical Examiner
Certification Exam 2026 – 2027 Update,
Questions & Answers (Verified Answers)
With Rationales | Complete A+ Guide
1. Under FMCSA regulations, who must be medically certified
to operate a commercial motor vehicle (CMV) in interstate
commerce?
• A) Any driver operating a vehicle over 10,000 lbs
• B) Any driver operating a vehicle over 26,001 lbs
GVWR, transporting hazardous materials, or carrying
16+ passengers
,Page 3 of 51
• C) Any driver operating a vehicle over 26,000 lbs for
any purpose
• D) Only drivers with a history of medical conditions
✅ Answer: B
Rationale: 49 CFR 390.5 defines a CMV for interstate
commerce as: >26,001 lbs GVWR/GCWR, or any size if
carrying hazardous materials requiring placarding, or
designed to carry 16+ passengers (including driver).
2. A driver is moving intrastate but operating a vehicle that
meets interstate CMV definitions. Does the driver need an
FMCSA medical certificate?
• A) No, intrastate is exempt
• B) Yes, if the state has adopted FMCSA standards
• C) Only if crossing state lines
• D) No, if the trip is less than 150 miles
, Page 4 of 51
✅ Answer: B
Rationale: Many states have adopted FMCSA medical
standards for intrastate CMV drivers. The ME must check state-
specific rules.
3. How long is a valid Medical Examiner’s Certificate (MEC),
Form MCSA-5876, typically valid for an interstate CMV
driver?
• A) 6 months
• B) 1 year
• C) 2 years
• D) 5 years
✅ Answer: C
Rationale: 49 CFR 391.43 – Maximum 2 years. May be less if
the ME determines a shorter interval based on a medical
condition.
