← Maryland alcohol laws›DUI / DWI Limits

Maryland DUI / DWI Limits (2026)

Info: In Maryland the adult per se limit for DUI is 0.08% blood alcohol, 0.07% can support a DWI ("impaired") charge, and drivers under 21 are held to a zero-tolerance limit of 0.02%.

InfoVerified Aug 2, 2026

Alcohol laws change at state, county and city lines.Track them in the free LawLert iPhone app: it alerts you when you cross into a state where they differ, or into a dry county where LawLert has the local rule, and when they change in your state. No account.Get the app

Official source: mgaleg.maryland.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

DUI / DWI Limits in states bordering Maryland

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

DelawareInfo
In Delaware the DUI limit for adults is 0.08% blood alcohol, or 0.04% for commercial drivers, and the limit for drivers under 21 is 0.02%. (21 Del. C. 4177.)
Verified May 31, 2026 · Source: delcode.delaware.gov · Full Delaware rule →
District of ColumbiaInfo
In the District of Columbia the per se limit for adults is 0.08% blood alcohol (DC Code 50-2206.11), and drivers under 21 face a zero-tolerance rule: any measurable alcohol counts as "intoxicated."
Verified May 31, 2026 · Source: code.dccouncil.gov · Full District of Columbia rule →
PennsylvaniaInfo
In Pennsylvania a DUI is 0.08% blood alcohol or higher for adults 21 and older (per se; the "general impairment" tier), the limit for drivers under 21 is 0.02%, and commercial drivers are limited to 0.04. Higher penalty tiers apply at 0.10 and 0.16.
Verified May 31, 2026 · Source: legis.state.pa.us · Full Pennsylvania rule →
VirginiaInfo
In Virginia the per se limit for adults is 0.08% blood alcohol, and drivers under 21 are held to a zero-tolerance limit of 0.02%.
Verified Aug 2, 2026 · Source: law.lis.virginia.gov · Full Virginia rule →
West VirginiaInfo
In West Virginia the per se limit for adults is 0.08% blood alcohol (W. Va. Code 17C-5-2), and drivers under 21 are held to a zero-tolerance limit of 0.02%.
Verified May 31, 2026 · Source: code.wvlegislature.gov · Full West Virginia rule →

Don't get caught off guardCross into a state where this law is different and the free iPhone app tells you what changed, even with the app closed. It also alerts you when a law you track changes where you live. No account.Get the free app

Track this law — get alerted when it changes

We watch the official sources behind Maryland alcohol rules. If a tracked rule changes, you get one short email — never more than one a week. Free, unsubscribe anytime.