How do I file a complaint against the interlock installer?

Mail a written complaint describing your issues and include your full name, date of birth and Arizona driver license number, as well as the name and location of the interlock installer to this address:

Ignition Interlock Unit
              Motor Vehicle Division
              P.O. Box 2100
              MD 530M
              Phoenix, AZ 85001

Note: If you have a complaint about fees charged, please contact your provider directly.