Medical Card Self-Certification for the CDL Exam

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 lapse and not realising the SDLA will downgrade the CDL to non-CDL within 30–60 days
• !Choosing the wrong self-certification category — non-excepted interstate is the most common option but not the right one for short-haul or excepted carriers
• !Forgetting to upload a renewed med card to the SDLA after each medical exam

Study tips

• 1Schedule your DOT medical exam 60 days before your current med card expires; this avoids any downgrade window.
• 2Choose the correct self-certification: most OTR drivers are NI (non-excepted interstate); short-haul intrastate drivers are NA (non-excepted intrastate).
• 3Submit your renewed med card via your state SDLA portal within 15 days of the exam — many states downgrade automatically after that window.

Sample CDL Medical Card Self-Certification questions

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

1. 1

   A CDL holder lets their DOT medical card expire. What is the typical consequence?

   • AA $500 fine but the CDL stays valid
   • BThe state SDLA downgrades the CDL to a non-CDL licenceCorrect
   • CThe driver is suspended for 30 days then reinstated
   • DNothing — the medical card is informational only
   Why this answer?

   FMCSA requires CDL holders to maintain a valid medical certification on file with their SDLA. When the certification lapses, the SDLA automatically downgrades the CDL to a non-CDL licence (Class C). The driver must pass a new medical exam and submit it to reinstate.