What the AZ Endorsement Is and Who Needs It
The AZ endorsement in Arizona is the hazardous materials endorsement for commercial drivers. It allows you to transport certain hazardous materials — chemicals, explosives, flammable liquids, gases, radioactive materials, and other regulated substances — in quantities that require placarding on your vehicle.
You need an AZ endorsement if your job involves hauling hazmat loads. Without it, you cannot legally transport hazmat in placardable quantities, even if you hold a valid CDL. Arizona law ties the AZ endorsement directly to federal Department of Transportation (DOT) hazmat regulations, so the rules are the same across all states.
If you drive a commercial vehicle but never carry hazmat, you do not need this endorsement. If you carry small quantities that do not require placarding — like a few cases of oil or cleaning supplies for your own use — you also do not need it.
Key Takeaways
- You must pass a written hazmat knowledge test at an Arizona MVD office before you can add the AZ endorsement to your CDL.
- A Transportation Security Administration (TSA) background check is required; disqualifying offenses include certain felonies, immigration violations, and drug convictions within the past 10 years.
- You must already hold a valid Arizona CDL before you can test for the AZ endorsement — you cannot obtain them at the same time.
- The hazmat endorsement is valid for five years from the date it is issued and must be renewed before it expires.
- Arizona charges a fee for the endorsement test and issuance; the exact amount varies and should be confirmed with your local MVD office.
TSA Background Check Requirements
Before you can take the hazmat test, you must pass a TSA security threat assessment. This is a federal requirement, not an Arizona-specific one. The TSA reviews your background for disqualifying offenses and issues a information letter.
You are disqualified if you have been convicted of certain felonies in the past 10 years, including violent crimes, drug trafficking, weapons offenses, and immigration-related crimes. You are also disqualified if you have been convicted of a felony involving fraud or forgery, or if you have been found not guilty by reason of insanity of any felony. Other disqualifying factors include outstanding warrants, certain mental health adjudications, and being subject to a protective order.
To start the TSA check, you must submit fingerprints and personal information through the Arizona MVD. The MVD will direct you to the correct process when you visit. The TSA typically completes the check within 30 days, though it can take longer if additional investigation is needed. You will receive a letter stating whether you passed or were denied.
If you are denied, you have the right to appeal the TSA decision. The appeal process is separate from Arizona and involves the TSA directly; your MVD office can provide contact information for the TSA appeal office.
Steps to Obtain the AZ Endorsement
You must follow these steps in order:
- Hold a valid Arizona CDL. You cannot test for the AZ endorsement without an active CDL in hand. If you do not yet have a CDL, obtain one first.
- Complete the TSA background check. Visit an Arizona MVD office and request the hazmat background check process. Bring a valid ID and be prepared to provide personal information and submit fingerprints. Pay any required fee.
- Wait for TSA clearance. The TSA will send you a information letter. Keep this letter; you will need to show it when you test.
- Study the hazmat manual. Arizona MVD provides a free hazmat study guide. You can read it from the MVD website or pick up a printed copy at any office. The test covers hazmat classifications, placarding, shipping papers, vehicle markings, and emergency procedures.
- Schedule and take the hazmat knowledge test. Visit an Arizona MVD office and request the AZ endorsement test. Bring your CDL, TSA clearance letter, and a valid ID. The test is typically 30 questions and you must score at least 80 percent to pass.
- Pay the endorsement fee and receive your updated CDL. If you pass, pay the fee and your CDL will be reissued with the AZ endorsement added. This usually happens the same day or within a few business days.
Documents and Fees You Will Need
Bring these documents to your MVD office:
- Your current Arizona CDL
- A valid photo ID (passport, military ID, or state ID)
- Proof of Arizona residency (utility bill, lease, or bank statement dated within 60 days)
- Your TSA clearance letter (once you have received it)
Arizona charges a fee for the hazmat endorsement test and for reissuing your CDL with the endorsement. The exact amount varies and should be confirmed with your local MVD office before you visit. Some offices accept cash, check, or card; confirm payment methods when you call ahead.
There is no additional fee for the TSA background check itself in most cases, but some MVD offices may charge a processing fee. Call your local office to ask.
How Long the Endorsement Lasts and Renewal
The AZ endorsement is valid for five years from the date it is issued. Your expiration date will be printed on your CDL.
To renew, you must visit an Arizona MVD office before the endorsement expires. You will need to pass the hazmat knowledge test again and pay the renewal fee. You do not need to repeat the TSA background check unless your endorsement was suspended or revoked, or unless the TSA notifies you of a change in your status.
If your endorsement expires, you cannot legally transport hazmat until you renew it. Driving hazmat without a valid endorsement is a violation of federal and state law and can result in fines and loss of your CDL.
Common Mistakes and How to Avoid Them
The most common mistake is attempting to take the hazmat test before receiving TSA clearance. You will not be allowed to test without the clearance letter, so do not skip this step or try to rush it. Start the TSA process as soon as you decide you need the endorsement.
Another mistake is not studying the hazmat manual before the test. The test covers specific regulations and classifications that are not intuitive. The MVD provides the study guide for free; use it. Many people fail on their first attempt because they underestimate the detail required.
A third mistake is forgetting to renew before expiration. Set a reminder on your phone or calendar three months before your endorsement expires. Renewing early is allowed and does not shorten the five-year validity period — your new expiration date will be five years from the renewal date.
Finally, do not assume your TSA clearance is permanent. If you are arrested, convicted, or your circumstances change significantly, notify the MVD. The TSA can revoke clearance at any time if new disqualifying information emerges.
Frequently Asked Questions
Can I get the AZ endorsement if I have a felony conviction?
It depends on the type of felony and when it occurred. Certain felonies disqualify you permanently or for 10 years. Contact the TSA or your local MVD office with details of your conviction; they can tell you whether you are disqualified. You cannot know until you submit to the background check.
What happens if I fail the hazmat test?
You can retake the test. There is no waiting period between attempts in Arizona, though you may have to pay the test fee again. Study the manual more thoroughly and schedule another test at your local MVD office.
Do I need the AZ endorsement to transport hazmat in other states?
No. The hazmat endorsement is recognized in all states. Once you have the AZ endorsement on your Arizona CDL, you can transport hazmat in any state that recognizes the CDL. However, you must follow that state's specific hazmat regulations and placarding rules.
Can I renew my AZ endorsement by mail or online?
No. You must visit an Arizona MVD office in person to renew the hazmat endorsement. You will need to retake the knowledge test and show your current CDL and ID.
What if my TSA clearance is denied?
You have the right to appeal the TSA decision. The TSA will provide appeal instructions in the denial letter. The appeal process is handled by the TSA, not by Arizona MVD. You cannot obtain the AZ endorsement until the appeal is resolved in your favor or until the disqualifying factor no longer applies.