To determine the beginning point of time for your necessary ignition interlock time period, check that all other legislative criteria have been satisfied or that the cause of the action has been removed. Please contact an MVD or approved Third Party office to restore your license. If you have previously had your driving privileges reinstated, the interlock requirement is optional as soon as the department receives notification of the conviction. Failure to install the device and produce proof to the MVD within 30 days of your conviction may result in immediate suspension of your Arizona driving license and probable extension of the initial interlock requirement. The interlock device must be calibrated and examined by a qualified installation every 90 days after it is placed in your vehicle. For the first three months, the manufacturer must electronically submit compliance checks every 30 days, then at least every 90 days following.