New Hampshire ignition interlock device state laws FAQs

An ignition interlock device is a breathalyzer that is installed in your vehicle to prevent drinking and driving. It is made up of a mouthpiece, a handheld unit and a cord that attaches to your vehicle’s ignition system. You are required to blow into the mouthpiece to test your Breath Alcohol Concentration (BrAC) before starting your car. For more information see our what is an interlock page.

To view the New Hampshire ignition interlock device requirements please visit the New Hampshire state page.

For pricing information, see New Hampshire pricing.

Please visit the New Hampshire state page to learn what steps you need to take to get back on the road.

To learn more about the steps to regaining your license, please visit our New Hampshire state page.

To find the New Hampshire Intoxalock service center closest to you, please visit our New Hampshire installation locations page.

The only way to confirm you are eligible to remove the device is to have Intoxalock check with your monitoring authority.

Intoxalock will contact your monitoring authority to ensure you are eligible for removal.

Please visit the New Hampshire state page to learn about other DUI requirements.

For pricing information, see New Hampshire pricing page.

To find a DUI attorney in New Hampshire, please visit our New Hampshire attorney partners page.
To find a treatment center in New Hampshire, please visit our New Hampshire alcohol treatment centers page.

To see how an ignition interlock device works, visit our ignition interlock page and watch our video demonstrating how to use the device.

To learn more about ignition interlock information, please visit our partner site.