SecondChanceInfo

Ignition Interlock Device (IID) in New Jersey

New Jersey uses the term "DWI" for impaired driving offenses. IID requirement: required for all dui offenses. First offense scope: 3 months (BAC 0.08-0.099%); 7-12 months (BAC 0.10-0.149%); 9-15 months (BAC 0.15%+). Confirm your actual notice and license status.

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Required for all DUI offenses

Quick Answer

New Jersey requires IID for all DWI convictions. Since December 2019, New Jersey replaced license suspension with mandatory IID for most offenders under the new law. First offenders with BAC below 0.10% get 3 months IID; BAC 0.10%-0.149% get 7-12 months; BAC 0.15%+ get 9-15 months. Repeat offenders get 2-4 years.

IID Duration by Offense

OffenseIID Duration
1st Offense3 months (BAC 0.08-0.099%); 7-12 months (BAC 0.10-0.149%); 9-15 months (BAC 0.15%+)
2nd Offense2-4 years
3rd Offense2-4 years (after 8-year license suspension)
4th+ OffenseCourt-ordered duration (typically 2+ years)

BAC threshold: Any DWI conviction — duration varies by BAC level

Confirm the device, provider and written quote

Check the responsible authority’s current approval information for the particular device and installer. Request the billing unit, included services, actual paid visit schedule, taxes, fees and removal terms in writing. Confirm financial assistance separately.

Add your own quoted charges in the IID worksheet. Unknown charges stay unknown; no local price or appointment count is assumed.

Restricted License with IID

Available

Under New Jersey's 2019 law, IID replaces license suspension for most offenders. With IID installed, you can drive without restrictions (no destination limitations). This was a major shift from the prior law which imposed license suspension without IID.

Tampering / Circumvention Penalties

Tampering with an IID in New Jersey carries fines up to $1,000, extension of the IID requirement, and possible additional charges.

Early Removal

New Jersey does not allow early removal.

New Jersey-Specific Notes

New Jersey overhauled its DWI law in December 2019 — replacing license suspension with mandatory IID for most offenders. This was a landmark change: instead of losing driving privileges entirely, offenders now keep driving with IID. The IID duration is directly tied to BAC level, making higher-BAC offenders carry the device longer. New Jersey also has no 'DUI' — only 'DWI.'

Frequently Asked Questions

Is an IID required for a first DWI in New Jersey?
Yes. All DWI convictions in New Jersey require IID since December 2019. First offense: 3 months (BAC 0.08-0.099%), 7-12 months (BAC 0.10-0.149%), or 9-15 months (BAC 0.15%+).
Does New Jersey still suspend your license for a DWI?
Under the 2019 law, IID replaces most license suspensions for first and second offenses. Instead of losing your license, you drive with an IID. Third offenders still face an 8-year suspension before IID is available.
How much does an IID cost in New Jersey?
Get a written quote for your vehicle and program. Confirm the billing period, included service, separately paid visits, taxes, state/program fees and removal charges. Verify any financial assistance before assuming a discount. A generic state price range is not your quote.

Related New Jersey Guides

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Disclaimer: This is informational only, not legal advice. IID requirements, costs, and approved providers change frequently. Verify current requirements with the New Jersey DMV, your IID provider, or a qualified DUI attorney in New Jersey.
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Sources

NHTSA: interlock device and program background. This national reference does not verify every state rule above. Confirm the applicable law and current instructions with the authority named on your order or licensing notice.