Straight answers before you start.
Is every DOT medical certification good for two years?
No. Twenty-four months is the general maximum interval for many drivers, but shorter certification periods apply in some situations and may also be issued by the medical examiner.
Why should I track the actual expiration date?
Because the driver's next certificate may be shorter than two years. The current credential or medical qualification record is the source of truth.
What changed with NRII?
Medical examiners electronically transmit CDL/CLP examination results to FMCSA, and participating States use that information in CDLIS. Motor carriers should use current FMCSA guidance for the medical documentation they retain.
Is the paper medical card still useful right now?
Yes during the current transition. A temporary nationwide FMCSA exemption through October 11, 2026 allows reliance on a paper certificate for up to 60 days after issuance when its conditions are met.