Maryland DUI/DWI Laws & Penalties (2026)
Maryland distinguishes between DUI (0.08%+) and DWI (0.04-0.07%). The state participates in the Ignition Interlock Program for all offenders.
Maryland DUI/DWI Penalties
1st Offense
2nd Offense
BAC Limits in Maryland
📜 Expungement
DUI/DWI expungement is available in Maryland. Waiting period: 3 years after completion.
Expungement Guide →💰 Estimated Total Cost
A first DUI/DWI in Maryland typically costs $10,000-$25,000+ including fines, attorney, classes, IID, and insurance increases.
Calculate Your Cost →DUI/DWI Lawyers by City in Maryland
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Maryland DUI/DWI Deep Dives
🚨 First Offense Penalties
Complete guide to what happens on your first DUI/DWI in Maryland.
🍺 BAC Limit
Legal BAC limits for standard, commercial, and under-21 drivers.
💰 DUI/DWI Cost
Full cost breakdown: fines, attorney, classes, insurance, and more.
🔧 Ignition Interlock Cost
IID installation, monthly fees, and provider comparison.
🚫 License Suspension
Suspension length, restricted license options, and reinstatement steps.
🧮 Cost Calculator
Estimate your total DUI/DWI cost with our interactive tool.
Official Sources & References
- 📋 Md. Code, Transp. § 21-902 — Maryland DUI/DWI statute
- 🚗 Maryland DMV — License suspension, reinstatement, IID requirements
- 📊 NHTSA Impaired Driving Data
- 🛡️ MADD — Mothers Against Drunk Driving
DUIFinders.com is not a law firm and does not provide legal advice. Information is for general purposes only. Consult a licensed attorney in Maryland for advice specific to your situation.
Maryland DUI/DWI FAQ
What is the BAC limit in Maryland?
The legal BAC limit in Maryland is 0.08% for regular drivers, 0.04% for commercial drivers, and 0.02% for drivers under 21.
What are the penalties for a first DUI/DWI in Maryland?
A first DUI/DWI in Maryland is a Misdemeanor. Penalties include Up to 1 year jail, Up to $1,000 in fines, and 6-month suspension license suspension.
Is an ignition interlock device required in Maryland?
Required for all offenses through IIP
Can a DUI/DWI be expunged in Maryland?
Yes, DUI/DWI expungement is available in Maryland. Waiting period: 3 years after completion.
What is the lookback period for DUI/DWI in Maryland?
Maryland uses a 5-year lookback period to determine if an offense counts as a repeat offense.