Arizona DOT & CDL Registration Guide

Operating as a commercial driver in Arizona means satisfying two layers of regulation at once: the federal rules set by the Federal Motor Carrier Safety Administration (FMCSA) and the state licensing rules administered by the Arizona Department of Transportation (ADOT) Motor Vehicle Division (MVD). Understanding how the two fit together is the key to keeping your CDL active without interruption.

Step 1 — Self-Certify Your Driving Category: Every Arizona CDL holder must tell the MVD which type of commerce they operate in. There are four categories. Non-Excepted Interstate drivers operate across state lines and must meet the federal physical qualification standards. Excepted Interstate drivers cross state lines but only in jobs the FMCSA exempts from the medical certificate requirement. Non-Excepted Intrastate drivers stay within Arizona and must meet the state medical standards. Excepted Intrastate drivers operate only within Arizona in exempt roles. Most commercial drivers fall into the Non-Excepted Interstate category and therefore need a current DOT medical certificate on file.

Step 2 — Complete Your DOT Medical Exam: If your category requires it, you must hold a valid Medical Examiner Certificate (Form MCSA-5876). At The Accident Doctor, our Certified Medical Examiner performs the exam, hands you your printed medical card, and reports the result directly to the FMCSA National Registry the same day.

Step 3 — Submit Your Certificate to the Arizona MVD: The federal registry and the state license system are separate. Even though your examiner reports to the FMCSA, you must still submit a copy of your MCSA-5876 to the Arizona MVD so it is attached to your driving record. You can do this online through AZ MVD Now or in person at an MVD office.

Mind the Deadlines: Submit your new certificate before your existing one expires. If your medical card lapses on the MVD record, the state can downgrade your commercial privileges until you provide a current certificate — an avoidable interruption that can keep you off the road and out of work.

Renewals: A standard DOT medical card is valid for up to 24 months, though the examiner may issue a shorter card if you manage a condition that needs periodic monitoring. Plan to schedule your renewal exam a few weeks before your card expires so you have time to complete the MVD submission without rushing.

Interstate vs. Intrastate, in Practice: Interstate drivers — anyone hauling goods or passengers across state lines, or carrying freight that originated or will end out of state — fall under federal medical standards. Drivers who operate strictly inside Arizona may qualify under the state intrastate standards, which can differ for certain conditions such as vision or diabetes. If you are unsure which applies to you, our examiner can help you understand the category that fits your work.

Keep Your Own Records: Always keep a personal copy of every medical certificate you receive. If there is ever a gap or error between the FMCSA registry and your MVD record, a copy of your current card is the fastest way to resolve it and prove you were qualified.

How The Accident Doctor Helps: Drivers across Maricopa County have relied on our Phoenix and Tolleson offices for DOT physicals since 2011. We issue your medical card on the spot, report to the National Registry the same day, and make sure you leave knowing exactly what to submit to the Arizona MVD and by when.

Staying compliant in Arizona is straightforward once you know the steps: self-certify your category, complete your DOT physical with a certified examiner, and submit your certificate to the MVD before it expires. Handle those three things on time and your CDL stays active year after year.