Research Summary
The Short Answer: It Depends on Your State
Standard DUI law covers traditional pedal bicycles the same as automobiles.
A lighter, cycling-specific offense applies (e.g., California's $250 CUI fine).
Standard DUI statute restricted to "motor vehicles." Traditional cyclists are excluded — but other charges may still apply.
Every year, thousands of people leave a bar, a game, or a backyard cookout and reason that riding a bicycle home is the responsible alternative to driving drunk. In many states, that logic holds up legally — a pedal bicycle is not a motor vehicle, and standard DUI statutes simply don't reach it. But in roughly one in six U.S. jurisdictions, that assumption is dangerously wrong.
The determining factor is not how intoxicated you are or how fast you're going. It's the precise wording of your state's vehicular code — specifically whether your state's DUI statute applies to a broad "vehicle" or a narrower "motor vehicle."[1]
The Legal Pivot: "Vehicle" vs. "Motor Vehicle"
State legislatures use two distinct statutory terms that form the bedrock of traffic law. Understanding the difference between them is the key to this entire analysis.
- Vehicle: Broadly defined as any device in, upon, or by which any person or property may be transported on a highway — excluding devices exclusively on rails. Under this definition, a bicycle qualifies.
- Motor Vehicle: A narrower sub-classification generally restricted to self-propelled vehicles powered by an internal combustion engine or an independent electric motor. Human-powered bicycles, by definition, are excluded.
If your state's DUI statute prohibits operating a "vehicle" while impaired, you can be charged for riding a bicycle drunk.[2]If the statute says "motor vehicle," a traditional bicycle is outside its reach.[3]
Example: Pennsylvania
Under 75 Pa. C.S. § 3802, the DUI statute applies to any "vehicle." Pennsylvania courts have affirmed — including in Kronenbitter v. Department of Transportation (1992) — that a bicycle is a vehicle.[2] A cyclist convicted of DUI in Pennsylvania faces the same mandatory minimums, license suspensions (up to 18 months), and permanent criminal record as an automobile driver.
Example: New Jersey
In State v. Machuzak (227 N.J. Super. 279, 1988), the New Jersey Superior Court overturned a municipal DWI conviction because N.J.S.A. § 39:4-50 explicitly applies to motorized conveyances only. The court reasoned that if the legislature intended to subject cyclists to the severe penalties of a DWI — including ignition interlock devices — it would have said so plainly.[3]
Landmark Court Decisions
Because no federal law governs bicycle DUI, the legal landscape has been shaped almost entirely by state appellate courts. Several decisions are particularly consequential:
Florida
State v. Howard, 510 So.2d 612 (Fla. 3d DCA 1987)
The Third District Court of Appeal held that because the legislature chose to make Florida's DUI statute (§ 316.193) applicable to all "vehicles" rather than restricting it to "motor vehicles," traditional pedal bicycles fall under DUI enforcement. Controlling precedent for all Florida courts. [↗]
Pennsylvania
Kronenbitter v. Dep't of Transportation, 615 A.2d 949 (Pa. Commw. Ct. 1992)
The defendant pleaded guilty to his third lifetime DUI — on a bicycle. The Commonwealth Court upheld PennDOT's five-year license revocation, affirming that under 75 Pa. C.S. § 3802, a bicycle is a "vehicle" and DUI parity with automobiles is total. [↗]
New Jersey
State v. Machuzak, 227 N.J. Super. 279 (App. Div. 1988)
The Superior Court overturned a DWI conviction for a cyclist, holding that N.J.S.A. 39:4-50 is mechanically restricted to motorized conveyances. Pedal bicycles remain exempt from DWI prosecution in New Jersey. [↗]
District of Columbia
Everton v. District of Columbia, 993 A.2d 595 (D.C. 2010)
The D.C. Court of Appeals affirmed a DUI conviction for a cyclist riding erratically and nearly colliding with a pedestrian. A bicycle meets the statutory definition of "any appliance moved over a highway on wheels," triggering full DUI liability. [↗]
South Dakota
State v. Bordeaux, 710 N.W.2d 169 (S.D. 2006)
The South Dakota Supreme Court initially held that bicycles were included in the broad "vehicle" definition. The legislature then swiftly amended the law to create an explicit bicycle exemption — reasoning that exempting cyclists from DUI would encourage people to choose a bike over driving drunk. [↗]
Interactive Map: Bicycle DUI Laws by State
The map below shows the strictness of impaired-riding laws across the United States. Hover over any state to see whether standard DUI or BUI laws apply, or whether the state exempts traditional cyclists.
State-by-State Reference: All 50 States + DC
The interactive table below covers every U.S. jurisdiction. Filter by legal status, search by state name, or expand any row for full statute citations and e-bike treatment details. Sources are linked directly to official government statutes.