Pennsylvania Bans Lane Splitting but Allows Two Riders Abreast

Pennsylvania belongs to the group of states that prohibited lane splitting by name rather than leaving it to be inferred from the absence of authorization. The rule sits in 75 Pa.C.S. § 3523, "Operating motorcycles on roadways laned for traffic," and it does the work in two separate subsections. Subsection (b) provides that the operator of a motorcycle shall not overtake and pass in the same lane occupied by the vehicle being overtaken, which closes off passing a car without leaving its lane. Subsection (c) then bars the maneuver on its own terms: "No person shall operate a motorcycle between lanes of traffic or between adjacent lines or rows of vehicles." Because subsection (c) speaks to lines or rows of vehicles rather than moving traffic alone, it reaches filtering to the front of a queue at a red light just as squarely as it reaches splitting at highway speed.

The statute is not one-sided. Subsection (a) grants the countervailing right that riders in Pennsylvania actually rely on: all motorcycles are entitled to full use of a lane, and no motor vehicle shall be driven in such a manner as to deprive a motorcycle of the full use of a lane. A driver who crowds a rider toward the shoulder to squeeze past inside the same lane is the one violating § 3523, not the rider.

Pennsylvania also permits something several states do not. Subsection (d) provides only that motorcycles "shall not be operated more than two abreast in a single lane," which by its terms allows two riders to share one lane side by side. Group riding in a staggered or paired formation is therefore lawful here, and it is the third bike pulling alongside that crosses the line. Subsection (e) adds an unrelated restriction that catches out riders of small machines: no motorized pedalcycle may be operated on any limited access highway, so a moped is barred from the interstates and expressways whatever the lane discipline.

The exception in subsection (f) is narrow and is the only one in the section. Subsections (b) and (c) do not apply to police officers in the performance of their official duties, which is why a motorcycle officer may legally run the gap between stopped lanes on the Schuylkill Expressway while the rider behind may not. There is no emergency exception for civilians, no exception for stopped or slowed traffic, no speed differential rule of the sort California adopted, and no exception for lanes wide enough to share.

Section 3523 sets no penalty of its own, so the general provision applies. Under 75 Pa.C.S. § 6502(a), a violation of the Vehicle Code for which no other penalty is provided is a summary offense carrying a fine of $25, and § 6502(c) makes Title 18's general summary-offense penalties inapplicable to the Vehicle Code. That fine is before the statutory costs and surcharges a magisterial district court adds to any traffic citation.

The more consequential point for a Pennsylvania licence is what the citation does not do. The point schedule at 75 Pa.C.S. § 1535(a) is a closed list of section numbers, and § 3523 does not appear anywhere in it, so a lane-splitting conviction assesses no points. The related passing sections do. Section 1535(a) assigns three points each to §§ 3303, 3304, 3305 and 3307 and up to four points to § 3306(a)(1). That matters because a rider who splits to the right of a car in the same lane is also outside § 3304, which permits overtaking on the right only where the overtaken vehicle is turning left or where the pavement is wide enough for two lawful lines of vehicles, and never by driving off the roadway. Charged under § 3304 instead of § 3523, the same maneuver becomes a three-point offense.

Section 3521 completes the frame by giving every motorcycle operator all the rights and all the duties of any other driver under Title 75, except as the motorcycle subchapter provides otherwise. Nothing in that subchapter grants a lane-splitting privilege.

Lane splitting is charged under 75 Pa.C.S. § 3523(c) as a summary offense. Because § 3523 prescribes no penalty of its own, the fine comes from 75 Pa.C.S. § 6502(a), which sets $25 for any Vehicle Code violation with no other penalty provided, plus the court costs and surcharges added by the magisterial district judge. Section 3523 is absent from the point schedule in § 1535(a), so no points attach to the conviction itself. An officer who charges the same maneuver as improper passing on the right under § 3304 produces a three-point offense under § 1535(a) instead, and if the rider left the roadway to get past, § 3304(a) is violated on its own terms. Enforcement is roadside by any police officer; there is no inspection or registration consequence, and subsection (f) exempts only police officers performing official duties.