Final answer:
The person ordered to install an ignition interlock device is responsible for its installation costs and monthly inspection fees. These costs can vary by jurisdiction and service provider.
Step-by-step explanation:
The individual who is ordered to install an ignition interlock device on their vehicle is typically responsible for the installation costs as well as the ongoing costs for monthly inspections and maintenance. These devices are often mandated by a court or a motor vehicle department as part of the sentencing for a DUI (driving under the influence) or other alcohol-related driving offenses. The costs may vary depending on the jurisdiction and the provider of the ignition interlock device services.