Start with N.J. Stat. Ann. § 39:4-50. In New Jersey, BAC limits: 0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21. A first offense: First-offense DUI is typically a traffic offense with fines, possible jail (especially at higher BAC), license suspension, IDRC, and ignition-interlock requirements. Felony threshold: A third DUI within 10 years remains in municipal court but carries lengthy suspension and interlock; vehicular homicide while intoxicated is a felony-level crime in Superior Court. That is the question this guide answers for DUI penalties. Lookback: Prior DUI convictions within 10 years enhance; a third DUI within 10 years carries steep mandatory penalties.. Ignition interlock: Ignition interlock is mandatory for virtually all New Jersey DUI offenders.
Blood alcohol limits in New Jersey
0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21
Lookback window for prior offenses
Prior DUI convictions within 10 years enhance; a third DUI within 10 years carries steep mandatory penalties.
How the New Jersey rule applies
Apply the New Jersey authorities in order. The facts are simplified so the statute and the standard are visible.
A driver in New Jersey is charged with a first impaired-driving offense and wants to know what the statute actually sets.
- Start with the alcohol limits: 0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21
- Read the first-offense range: First-offense DUI is typically a traffic offense with fines, possible jail (especially at higher BAC), license suspension, IDRC, and ignition-interlock requirements.
- Ask when the charge becomes a felony: A third DUI within 10 years remains in municipal court but carries lengthy suspension and interlock; vehicular homicide while intoxicated is a felony-level crime in Superior Court. Lookback: Prior DUI convictions within 10 years enhance; a third DUI within 10 years carries steep mandatory penalties.
- Interlock: Ignition interlock is mandatory for virtually all New Jersey DUI offenders.
New Jersey DUI under N.J.S.A. 39:4-50 proceeds primarily in municipal court with MVC administrative consequences. Defense reviews the stop and Alcotest record.
First-offense penalties
First-offense DUI is typically a traffic offense with fines, possible jail (especially at higher BAC), license suspension, IDRC, and ignition-interlock requirements.
When a New Jersey DUI becomes a felony
A third DUI within 10 years remains in municipal court but carries lengthy suspension and interlock; vehicular homicide while intoxicated is a felony-level crime in Superior Court.
Ignition interlock and license consequences
Ignition interlock is mandatory for virtually all New Jersey DUI offenders.
How a typical New Jersey DUI case unfolds
New Jersey DUI under N.J.S.A. 39:4-50 proceeds primarily in municipal court with MVC administrative consequences. Defense reviews the stop and Alcotest record.
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Case law: DUI penalties in New Jersey
State v. Corrado
State v. Corrado, 184 N.J. Super. 561 (1982)
…was escorted to the police car. Defendant was arrested for driving under the influence of alcohol and taken across the street to the police station where he was issued a summons for leaving the scene of an accident. He was further charged with careless driving and leaving the scene of a second accident which occurred some time between the first accident and the time his vehicl…
On DUI penalties, State v. Corrado speaks to the New Jersey dispute in this passage: "Defendant was arrested for driving under the influence of alcohol and taken across the street to the police station where he was issued a summons for leaving the scene of an accident." The surrounding opinion shows how the court applied that language to the record.
State v. Chambers
State v. Chambers, 377 N.J. Super. 365 (2005)
…onth suspension of his driver's license, twelve hours at an Intoxicated Driver Resource Center, a $402 fine, a $200 DWI surcharge, a $75 Safe Neighborhood Fund assessment and a $50 VCCB assessment. Defendant appealed his conviction to the Law Division. Based on a de novo review of the municipal court record, on March 19, 2004, the Law Division found defendant guilty of violatin…
New Jersey opinions such as State v. Chambers are cited where DUI penalties is disputed. The court stated: "Intoxicated Driver Resource Center, a $402 fine, a $200 DWI surcharge, a $75 Safe Neighborhood Fund assessment and a $50 VCCB assessment. Defendant appealed his conviction to the Law Division." That is the language to brief; the rest of the decision supplies the procedural posture.
State v. DiSomma
State v. DiSomma, 262 N.J. Super. 375 (1993)
…ndant was found guilty in the Brigantine Municipal Court of driving under the influence, in violation of N.J.S.A. 39:4-50, commonly referred to as driving while intoxicated (DWI). At sentencing for this offense, the municipal court judge decided that the defendant's 1986 refusal violation did not provide a basis for imposing second offender status, see N.J.S.A. 39:4-50(a)(2), u…
On DUI penalties, State v. DiSomma speaks to the New Jersey dispute in this passage: "Brigantine Municipal Court of driving under the influence, in violation of N.J.S.A. 39:4-50, commonly referred to as driving while intoxicated (DWI)." The surrounding opinion shows how the court applied that language to the record.
State v. DeLorenzo
State v. DeLorenzo, 210 N.J. Super. 100 (1986)
…e, the only "choice" afforded a driver alleged to have been driving under the influence is whether to comply with the law or to violate it. As the court stated in State v. Macuk, 57 N.J. 1, 15 (1970): There is no legal right or choice to refuse, despite the authorized additional penalty for refusal in the case of the breath test. So it is inappropriate to warn that a test need…
State v. DeLorenzo is worth reading on New Jersey DUI penalties because the court put the point in its own words: "As the court stated in State v. Macuk, 57 N.J. 1, 15 (1970): There is no legal right or choice to refuse, despite the authorized additional penalty for refusal in the case of the breath test." Use that passage as the starting point, then read the facts that precede it.
State v. Gordon
State v. Gordon, 261 N.J. Super. 462 (1993)
…ship, which resulted in the discontinuing of videotaping in driving under the influence cases, operated to deprive the defendant, David Gordon, of the opportunity to preserve evidence and thereby violated his right to due process under the law. After the denial in both the municipal court and the Law Division of Gordon's motion to dismiss the driving under the influence charge,…
State v. Gordon is worth reading on New Jersey DUI penalties because the court put the point in its own words: "David Gordon, of the opportunity to preserve evidence and thereby violated his right to due process under the law." Use that passage as the starting point, then read the facts that precede it.
State v. Niemeyer
State v. Niemeyer, 195 N.J. Super. 559 (1984)
…bstract of the defendant discloses the following: 9/27/72 - driving under the influence and accident 5/12/76 - " " " " " " 7/2/79 - " " " " " " 4/12/80 - " " " " ; leaving the scene of an accident; failure to observe traffic control device; unlicensed driver 11/23/80 - driving under the influence 11/21/82 - " " " " The State contends that this evidence demonstrates that the def…
State v. Niemeyer is worth reading on New Jersey DUI penalties because the court put the point in its own words: "bstract of the defendant discloses the following: 9/27/72 - driving under the influence and accident 5/12/76 - ' ' ' ' ' ' 7/2/79 - ' ' ' ' ' ' 4/12/80 - ' ' ' ' ; leaving the scene of an accident; failure to observe traffic control device; unlicensed driver 11/23/80 - driving un" Use that passage as the starting point, then read the facts that precede it.
NJ DIV. OF MOTOR VEHICLES v. Ripley
NJ DIV. OF MOTOR VEHICLES v. Ripley, 364 N.J. Super. 343 (2003)
…ns: (1) the conduct in Utah would constitute the offense of driving under the influence in New Jersey; and (2) the Utah statute for alcohol-related reckless driving is substantially similar to New Jersey's statute for driving under the influence. We find neither reason applicable here and reverse. I In Ogden, Utah on November 9, 2000 Ripley was arrested and charged with driving…
On DUI penalties, NJ DIV. OF MOTOR VEHICLES v. Ripley speaks to the New Jersey dispute in this passage: "Utah would constitute the offense of driving under the influence in New Jersey; and (2) the Utah statute for alcohol-related reckless driving is substantially similar to New Jersey's statute for driving under the influence. We find neither reason applicable here and reverse." The surrounding opinion shows how the court applied that language to the record.
STATE OF NEW JERSEY, PLAINTIFF/RESPONDENT v. GARY LUTZ, JR.
STATE OF NEW JERSEY, PLAINTIFF/RESPONDENT v. GARY LUTZ, JR., 309 N.J. Super. 317 (1998)
…und guilty in the Point Pleasant Borough Municipal Court of driving under the influence of alcohol, N.J.S.A 39:4-50, and careless driving, N.J.S.A. 39:4-97. He was acquitted of a seat belt charge. After merger, for his third DWI conviction, defendant was sentenced to serve 180 days in jail; to pay a $1,000 fine, a $100 surcharge, a $50 V.C.C.B. penalty, a $75 Safe Neighborhood…
On DUI penalties, STATE OF NEW JERSEY, PLAINTIFF/RESPONDENT v. GARY LUTZ, JR. speaks to the New Jersey dispute in this passage: "Point Pleasant Borough Municipal Court of driving under the influence of alcohol, N.J.S.A 39:4-50, and careless driving, N.J.S.A. 39:4-97. He was acquitted of a seat belt charge." The surrounding opinion shows how the court applied that language to the record.
Key takeaways
- BAC limits: 0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21
- Lookback period: Prior DUI convictions within 10 years enhance; a third DUI within 10 years carries steep mandatory penalties.
- First-offense range: First-offense DUI is typically a traffic offense with fines, possible jail (especially at higher BAC), license suspension, IDRC, and ignition-interlock requirements.
- Felony threshold: A third DUI within 10 years remains in municipal court but carries lengthy suspension and interlock; vehicular homicide while intoxicated is a felony-level crime in Superior Court.
- Ignition interlock: Ignition interlock is mandatory for virtually all New Jersey DUI offenders.
- Primary authority: N.J. Stat. Ann. § 39:4-50.
Frequently asked questions
What is the legal BAC limit in New Jersey?
0.08% for adults; 0.04% for commercial drivers; zero-tolerance for drivers under 21
Is a first DUI a felony in New Jersey?
A third DUI within 10 years remains in municipal court but carries lengthy suspension and interlock; vehicular homicide while intoxicated is a felony-level crime in Superior Court.
Will I need an ignition interlock device?
Ignition interlock is mandatory for virtually all New Jersey DUI offenders.
This guide covers New Jersey impaired-driving law as of 2026. Sentencing grids, administrative DMV rules, and local diversion programs change — verify the live statute and speak with counsel about your charging document.