If you are ordered to install an ignition interlock device in your vehicle, the costs of installation and the monthly inspection must be paid by:

An ignition interlock device (IID) is a mechanical unit that is connected to the vehicle’s ignition, horn, and headlights and measures the concentration of alcohol in a person’s breath. If you have more than one alcohol-related contact showing on your driver record, you must have an IID installed on any vehicle you operate before your driving privileges can be reinstated. You must pay for having the device installed and for having it serviced every month.
DMV Writen Test