A second DWI in New Jersey
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48 consecutive hours that cannot be suspended — unless ten years passed. The 48 hours may not be suspended or served on probation, and 30 days of community service come with them. But the statute contains a step-down that changes cases: where the second offense happens more than ten years after the first, the court treats the second conviction as a first for sentencing. Time with an interlock also buys license time back — one day of credit for every two days the device is installed.
Written any number of ways — a 2nd DWI, a DWI 2nd, a 2nd offense DWI, or a second DWI in NJ — and the paperwork will use none of them. New Jersey charges it under a section number, and that is what decides the range below.
Grade. Traffic offense under R.S. 39:4-50
Confinement. 48 consecutive hours to 90 days
Fine. $500 to $1,000
New Jersey Revised Statutes § 39:4-50 · N.J.S.A. § 39:4-50(a)(2) · checked 2026-09-04
What turns this DWI into something worse
Each line below is a separate provision with its own punishment range. They stack with the arithmetic of prior convictions rather than replacing it.
| The fact | What it makes it | Detail and source |
|---|---|---|
| More than ten years since the previous offense | The court sentences the second conviction as a first | The step-down runs down the whole ladder: a third offense more than ten years after the second is sentenced as a second. It is one of the few provisions anywhere that lets time served clean reduce the grade rather than merely the sentence. New Jersey Revised Statutes § 39:4-50 · N.J.S.A. § 39:4-50(a) · checked 2026-09-04 |
The device is a separate track
New Jersey ties the interlock term to your blood alcohol reading, not just to the fact of a conviction. Since 2024 you may fit a device voluntarily after arrest and before conviction, which can cut the fine and shorten the suspension. Skip it and the court must suspend your license indefinitely until you install one — the device is what gets you driving again.
In New Jersey the interlock term runs 3–15 months and is administered by New Jersey Motor Vehicle Commission, on the sentencing court order — which is why a plea that settles the criminal case does not settle the device. What counts as a violation on it, and what an agency adds to the term, is its own arithmetic: violations and lockouts. Getting it off at the end is a procedure of its own too — removal and waivers.
Source: New Jersey Motor Vehicle Commission, on the sentencing court order
New Jersey DWI questions
Is there a 2nd DWI in New Jersey with no jail time?
The 48 hours may not be suspended or served on probation, and 30 days of community service come with them. But the statute contains a step-down that changes cases: where the second offense happens more than ten years after the first, the court treats the second conviction as a first for sentencing. Time with an interlock also buys license time back — one day of credit for every two days the device is installed.
How likely is jail time for a second DWI in NJ?
Start from what the statute forces and what it leaves to the judge. The floor here is 48 consecutive hours to 90 days, and it moves on the facts: more than ten years since the previous offense means the court sentences the second conviction as a first. Everything above that floor is argued, and the same conviction can end up served in custody, on work release or as a condition of probation depending on the county and the judge. What no one can promise you is a sentence below the statutory minimum — that is not a question of persuasion.
What is the punishment range for a 2nd DWI in New Jersey?
Traffic offense under R.S. 39:4-50: 48 consecutive hours to 90 days, and a fine of $500 to $1,000. The range is set by N.J.S.A. § 39:4-50(a)(2), and the figures on this page come from the statute rather than from a summary of it.
What makes it worse in New Jersey?
More than ten years since the previous offense — the court sentences the second conviction as a first.
Does an interlock come with it in New Jersey?
New Jersey ties the interlock term to your blood alcohol reading, not just to the fact of a conviction. Since 2024 you may fit a device voluntarily after arrest and before conviction, which can cut the fine and shorten the suspension. Skip it and the court must suspend your license indefinitely until you install one — the device is what gets you driving again. The device requirement and the criminal penalty are separate tracks: one is handled by the court, the other by New Jersey Motor Vehicle Commission, on the sentencing court order.
Other steps in New Jersey: when it becomes a felony penalties and first offense penalties.
All New Jersey DWI rules →Penalties across the states →New Jersey DUI lawyers →Getting the license back →
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