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I have a medical condition that makes providing a breath sample difficult, what are my options?

There are no provisions in state law to exempt a person with a medical condition from an interlock requirement. All devices are certified to meet NHITSA standards.  Based on these NHITSA standards, there is a minimum blow rate that is required to get a proper sample.  However, there are options that one can pursue when providing a breath sample is challenging:

Will the interlock lose all memory if the battery is disconnected?

No. The device has a battery back up to protect the data log's memory. However; due to security precautions to detect tampering, if the device detects a change in battery voltage; such as a ‘battery disconnect’, it may register as a tampering event and recall your device to the service center so the technician may conduct a tamper check and this may be reported to the MVD as a tampering violation. If mechanical services must performed on your vehicle, please notify your manufacturer prior to services.

I have more then one vehicle but cannot afford or choose not to put a device in all of them. What do I do?

ARS 28-1461 states that the person shall not operate a motor vehicle unless it is equipped with a certified ignition interlock device. If you cannot install on all your vehicles, it is not permissible for you to drive your other vehicles that are not installed with an interlock device during your requirement.