← Pennsylvania alcohol laws›DUI / DWI Limits
Pennsylvania DUI / DWI Limits (2026)
Info: 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.
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.
Official source: legis.state.pa.us →
General legal information, not legal advice — verify important decisions with a licensed attorney.
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 appWe watch the official sources behind Pennsylvania alcohol rules. If a tracked rule changes, you get one short email — never more than one a week. Free, unsubscribe anytime.