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DOT Medical Card for the CDL Exam

Without a current medical card, the CDL is automatically downgraded to a non-CDL by the state DMV. Drivers must self-certify to one of four categories: non-excepted interstate, excepted interstate, non-excepted intrastate, excepted intrastate.

Locale-specific study guides

Pass-rate data, regulatory context, and study tips for DOT Medical Card all change by candidate locale. Pick your context:

Common failure modes

These are the patterns that cause most candidates to lose marks on this topic. Recognising them in advance is half the work.

!Letting the medical card expire — automatic CDL downgrade
!Self-certifying to the wrong category for the type of work being performed
!Skipping the disqualifying-condition checklist (uncontrolled diabetes, certain cardiovascular issues)
!Missing the 30-day reporting rule for any change in medical status

Study tips

1Memorize the four self-certification categories and which one applies to your work.
2Drill the disqualifying conditions list (FMCSA 391.41).
3Set a calendar reminder 60 days before card expiration.
4Know the requirement to file the new medical certificate with state DMV within 15 days.

Sample CDL DOT Medical Card questions

These sample items mirror the format and difficulty of real CDL questions. Practice with thousands more on the free Koydo question bank.

1
A CDL driver who drives only within Texas, transporting only their own products, would self-certify as:
- ANon-excepted interstate
- BExcepted interstate
- CNon-excepted intrastate
- DExcepted intrastateCorrect
Why this answer?
Excepted intrastate covers drivers who only operate within state lines and only carry their own goods (or other state-defined exceptions). State medical rules apply rather than federal.

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