The accumulation of serious traffic offenses within a three-year period can lead to CDL revocation fo lengthy periods of time.

• One serious offense in three years: revocation for 60 days
• Two serious offenses in three years: revocation for 120 days
• Three or more serious offenses in three years: revocation for one year

Aside from the traffic offenses listed above, if a commercial vehicle driver is found to be “driving in a manner that constitutes an imminent hazard,” their license can be revoked for a year.

In Arizona, multiple convictions for DUI can result in CDL revocation for life. On the other hand, very serious criminal violations involving motor vehicles can result in permanent CDL revocation after a single offense.

Additionally, a person’s CDL can be permanently revoked if:

• “the person is convicted of using any motor vehicle in the commission of
  a felony involving the manufacture, distribution or dispensing of a
  controlled substance or possession with intent to manufacture, distribute
  or dispense a controlled substance.”
• “the person is convicted of any of the following offenses or an offense committed in another jurisdiction that if committed in this state would be a violation of any of the following offenses and a commercial motor vehicle was used in the commission of the offense: (a) Sex trafficking; (b) Trafficking of persons for forced labor or services; (c) Child sex trafficking.”