New DWI Law Alert: New Jersey’s Interlock Credit Changes Effective April 3, 2025

On April 3, 2025, New Jersey’s amended DWI statute—N.J.S.A. 39:4-50(i)(2)—goes into effect, bringing important changes to how ignition interlock device (IID) credit is awarded in DWI cases. This update is especially significant for first-time offenders, out-of-state drivers, and anyone hoping to reduce their interlock obligation through early compliance.

If you’re facing a DWI charge in New Jersey or advising a client who is, here’s what you need to know about these new requirements.

What the New Law Does: Interlock Credit Opportunities

Under the revised N.J.S.A. 39:4-50(i)(2), defendants may now earn credit toward their mandatory IID period before the date of conviction, but only if they meet specific eligibility criteria.

This is a major shift in how New Jersey approaches interlock compliance. The new provisions offer an incentive for early installation and consistent use of the device—but they come with strict prerequisites.

Who Qualifies for Interlock Credit?

To be eligible for interlock credit under the new statute, a defendant must satisfy all of the following:

1. Valid NJ License in Good Standing

• The driver must hold a valid New Jersey driver’s license that is in good standing at the time of the offense and continuously maintained until the date of conviction.

2. No Serious Bodily Injury Resulting from the Offense

• The DWI must not involve a motor vehicle accident that caused serious bodily injury to another person.

3. Voluntary Pre-Conviction Installation

• The driver must voluntarily install the IID prior to conviction. If done properly and with court approval, this time may be credited toward the total required interlock period post-conviction.

What About Out-of-State Drivers?

The updated law also clarifies that out-of-state licensed drivers are entitled to equal protection and full faith and credit under the U.S. Constitution. However, interlock credit applies only to alcohol-related offenses and must be consistent with New Jersey law.

Key takeaway: If you’re licensed in another state but charged with DWI in New Jersey, you may be entitled to equal application of the statute, but interlock credit eligibility remains limited to alcohol-related offenses.

Why This Law Matters

This change gives first-time and cooperative defendants a real opportunity to shorten their interlock obligation, but only if they act quickly and meet the statute’s conditions.

It also sends a clear message: New Jersey is expanding the use of ignition interlock devices as both a punitive and rehabilitative tool—but only for those who comply early and cause no harm to others.

Facing a DWI in New Jersey? Time Is Critical

At Beninato & Matrafajlo, we understand how even a first-time DWI charge can disrupt your life and career. With the new interlock credit law taking effect in April 2025, your early decisions could reduce your penalties and shorten your interlock period.

If you or a loved one has been charged with DWI, call us immediately at (908) 355-7100 or contact us online for a free consultation. We’ll help you determine if you qualify for interlock credit and fight for the best possible outcome.