Delaware DUI Laws and Penalties (2026)

A complete guide to DUI and DWI laws in Delaware, including penalties for first and repeat offenses, BAC limits, license suspension rules, and when a DUI becomes a felony.

Important: This information is for general educational purposes only and is not legal advice. DUI laws in Delaware can change. If you are facing a DUI charge, consult a licensed Delaware DUI attorney immediately.

Delaware DUI At a Glance

BAC Limit0.08%
Felony at3rd offense
1st Offense MinVaries

First Offense DUI in Delaware

Up to 12 months jail, $500–$1,500 fine, 6-month revocation

Drug Recognition Expert program used extensively

Second Offense DUI in Delaware

60 days–18 months jail, $750–$2,500 fine, 1-year revocation

When Does a DUI Become a Felony in Delaware?

In Delaware, a DUI typically becomes a felony charge at the 3rd offense. Additional circumstances that can elevate a DUI to a felony include:

  • Causing injury or death to another person while driving impaired
  • Having a child passenger in the vehicle
  • Having an extremely high BAC (typically 0.15% or 0.16%+)
  • Driving on a suspended or revoked license due to a prior DUI

Delaware DUI BAC Limits

Driver TypeBAC Limit
Standard (21+)0.08%
Under 210.00%–0.02% (zero tolerance)
Commercial Driver (CDL)0.04%

Refusing a Breathalyzer in Delaware

Delaware, like all U.S. states, has an implied consent law. By driving on Delaware roads, you implicitly consent to chemical testing (breath, blood, or urine) if lawfully arrested for DUI. Refusing a test will typically result in automatic license suspension, separate from any DUI conviction, and the refusal can be used against you in court.

DUI vs. DWI in Delaware

Different states use different terminology. Delaware uses DUI (Driving Under the Influence) as its primary statute, though both alcohol and drug impairment can result in charges.

Finding a DUI Lawyer in Delaware

If you are facing a DUI charge in Delaware, it is strongly recommended to consult with a qualified DUI defense attorney as soon as possible. An attorney can:

  • Review the circumstances of your arrest for procedural errors
  • Challenge the accuracy of BAC testing equipment
  • Negotiate for reduced charges or alternative sentencing
  • Represent you at DMV hearings to contest license suspension

Other Delaware Traffic Laws