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Get back on the road with the highest-rated interlock device.

Give us a little information and we can help with next steps. We can help you through the process.

Solicitud de contacto en Espanol

By clicking the button, you consent to Consumer Safety Technology, LLCConsumer Safety Technology, LLC brands include Intoxalock, Keepr, DUI.org, DUICare and its affiliate Breathe Easy Insurance Solutions, LLC calling and texting at the telephone number provided, without regard to the time of day, to encourage the purchase or lease of DUI-related products and services, including through the use of automated technology, artificial voice and/or pre-recorded means. Consent is not a condition of purchase. For California residents, click here.
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New Hampshire Requirements

New Hampshire has a variety of penalties for drunk driving. This guide will go over the interlock process in New Hampshire.

The NH Ignition Interlock Program

In NH, the term for alcohol-based driving offenses is DWI, driving while intoxicated. The legal blood alcohol content limit (BAC) is .08 percent. Even first offenders risk having their license suspended for at least nine months. Some offenders may be able to get back on the road if they agree to install an ignition interlock device.

There are tiered penalties in New Hampshire, meaning the penalties increase depending on how many previous DWI offenses a driver has on their record. The penalties increase also if there are certain circumstances, like a BAC double the limit or a minor is in the car.

What Happens if I Get a DWI in New Hampshire?

These are the penalties DWI offenders may be given for a DWI offense in New Hampshire. Penalties increase if the offender committed aggravated DWI. Factors that can create an aggravated DWI offense include speeding more than 30 miles over the limit, causing serious injuries, eluding law enforcement, having a minor in the car, or having a BAC > .16.

First DWI Offense

  • No jail time for first offenders
  • Fines of $500 to $1,200
  • License suspended for nine months to two years
  • A judge can require probation for up to two years
  • If put on probation, offenders must complete an alcohol and drug evaluation and complete the Impaired Driver Care Management Program (IDCMP)

Second DWI Offense

  • 17 days to one year in jail (minimum of 60 days if there is a prior DWI offense within two years)
  • Fines of $750 to $2,000
  • License suspended for three years
  • A judge can require probation for up to two years
  • If put on probation, offenders must complete an alcohol and drug evaluation and complete the Impaired Driver Care Management Program (IDCMP)

Third DWI Offense

  • 180 days to one year in jail
  • Fines of $750 to $2,000
  • License revoked for life
  • A judge can require probation for up to two years
  • If put on probation, offenders must complete an alcohol and drug evaluation and complete the Impaired Driver Care Management Program (IDCMP)

What Happens if I Fail to Complete or Refuse to Submit to a DWI Test in New Hampshire?

A first refusal to submit to a chemical test still has consequences. Offenders risk having their license suspended for 180 days or more if this is the second refusal.

How Do I Regain Driving Privileges in New Hampshire?

New Hampshire’s Department of Motor Vehicles will alert offenders if they are required to install an ignition interlock device. These offenders may be eligible for a restricted license if they meet all criteria, including:

  • Offender must install an IID from a state-approved provider in any vehicle registered to them or that they regularly drive
  • Show certificate of installation at appropriate DMV location
  • Add interlock restriction to their driver’s license
  • Pay any necessary fees
  • Provide proof of insurance
  • Complete any other requirements issued by the court

There may be additional criteria to meet depending on the circumstances of the event.

Get a Free Quote! Call 877-274-3419

What is next? We can help you through the process. Give us a little information and we can help with next steps. 

Solicitud de contacto en Espanol

By clicking the button, you consent to Consumer Safety Technology, LLCConsumer Safety Technology, LLC brands include Intoxalock, Keepr, DUI.org, DUICare and its affiliate Breathe Easy Insurance Solutions, LLC calling and texting at the telephone number provided, without regard to the time of day, to encourage the purchase or lease of DUI-related products and services, including through the use of automated technology, artificial voice and/or pre-recorded means. Consent is not a condition of purchase. For California residents, click here.

The Process: What to Expect

The DUI process may seem complex, but having a clear understanding of each step will help you stay on course.
  1. Consult with Legal Counsel

    Seek guidance from a DUI lawyer to understand your legal options and rights following a DUI violation.

  2. Get an Assessment

    Complete a court-ordered or voluntary assessment to evaluate your risk level and determine any required interventions.

  3. Obtain Proof of SR-22 Insurance, If Required

    If applicable, provide proof of financial responsibility and insurance coverage with an SR-22 certificate.

  4. Schedule Interlock Install

    Speak to our State Specialists to schedule your IID installation to meet court or state requirements.

  5. Regular Monitoring

    Your ignition interlock usage will be regularly monitored to maintain compliance with legal requirements.

  6. Device Removal

    After fulfilling your IID requirement and receiving approval from your monitoring authority, you can arrange to have your ignition interlock device removed at your local service center.

Interlock Cost in New Hampshire

Ignition interlock costs are covered by the offenders in New Hampshire. The devices cost between $2.50 and $3.50 per day. Intoxalock has many flexible payment options.
Find an Install Location Near You

Expert DWI Attorneys in New Hampshire

Attorneys will represent your interests in court. An experienced DWI attorney can help guide you through the process. If you are unsure how to find an attorney, we partner with several in your area.

Bosen & Associates, PLLC

266 Middle St
Portsmouth, NH 03801

Hansen Law Offices, PLLC

155 Fleet St, Suite 44
Portsmouth, NH 03801

New Hampshire Public Defenders

142 Portsmith Ave
Stratham, NH 03885

Sisti Law Office

78 Fleet St
Portsmouth, NH 03801

New Hampshire FAQs

An ignition interlock device is a protective measure that stops potential drunk drivers in their tracks by requiring a breath test before vehicle operation.

Many convicted DUI offenders are ordered to install an ignition interlock device if they wish to regain driving privileges. New Hampshire requires the device to be installed by a state-approved interlock provider.

The costs of your interlock device will vary depending on your vehicle and chosen interlock provider. Intoxalock customers will pay $22.49 to $100 deposit, as well as a $7.49 to $29.99 setup fee at installation. The monthly lease will cost $22.49 to $89.99.

New Hampshire does not require DUI offenders to have their court order at the installation appointment, but you should have been given a court order if you are going to install. Intoxalock customers can make their appointment with one of our state specialists or contact their chosen service center to make one themselves.

You should bring your New Hampshire driver’s license or ID card, and the name of the registered owner.

Visit the New Hampshire locations page to review all locations in New Hampshire.

The state will send you a Certificate of Removal with an eligibility date. You can schedule your removal on or after the eligibility date.

You should bring your Certificate of Removal to your removal appointment.

Check the New Hampshire state page for all DUI penalties.

Yes, financial assistance is available to those declared indigent by the court.

Intoxalock works with many experienced DUI attorneys. We’ve created a list of local attorneys in your state who may be able to help.

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 ignition interlock device page.

Customers Have Great Things to Say

Intoxalock man customer service representative on call
“Intoxalock customer service reps answered all my questions, made the process worry free, and promptly responded to my email when I had additional questions. Install was quick and easy. Service employee showed me how to use the device and let me take all the time I needed. App download and account creation was simple.”
Jack
Intoxalock woman customer service representative on call
“What an amazing customer service representative! So lively and beyond friendly. Felt like I had a new best friend for the entire experience. She got me set up with everything, painlessly and quickly, and was very thorough in her explanations. Thank you for a making my experience a pleasant one.”
Brittany
Intoxalock woman customer service representative on call
“The representative assisting me with my case has been amazing! She is very helpful and understanding. I have felt comfortable working with her since day one of me calling this place. She explains everything very clearly and follows up to see if you need further assistance. I definitely recommend this company and working with her!”
Katherine
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Licenses Regained
Intoxalock has helped over 1 million individuals in regaining their license.
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Over 90% of our customers live within 10 miles of one of our locations for unmatched convenience.
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A pioneer in ignition interlocks, Intoxalock has been enabling responsible choices for over 35 years.
Legal Disclaimer

The information provided on this website does not, and is not intended to, constitute legal advice; instead, all information, content, and materials available on this site are for general informational purposes only.  Information on this website may not constitute the most up-to-date legal or other information. 


Readers of this website should contact their attorney to obtain advice with respect to any particular legal matter. Only your individual attorney can provide assurances that the information contained herein – and your interpretation of it – is applicable or appropriate to your particular situation. 
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Our state specialists are ready to answer your questions and get you through the process, one step at a time.