Vehicle Equipment Laws in Pennsylvania (2026)
7 rules on the books across Pennsylvania. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Window Tint Limits
The visible-light-transmission percentage each window may be tinted to, which differs for the windshield strip, front sides, rear sides and back glass, plus reflectivity caps, the medical-exemption process, and how the tint is measured at inspection or roadside.
Radar Detector Rules
Where radar detectors are banned outright, where they are barred only in commercial vehicles, the separate and near-universal prohibition on laser jammers and signal jammers, and whether a detector may be confiscated on the spot.
Underglow & Auxiliary Lighting
Which aftermarket light colours and placements are legal on a moving vehicle, the near-universal ban on forward-facing red and on blue light reserved to emergency vehicles, flashing and oscillating restrictions, and whether underglow may be lit in motion or only when parked.
Studded Tire & Chain Rules
The calendar window during which studded tires are permitted, the states that ban them year-round, stud material and projection limits, and the chain requirements that apply when a mountain pass or highway is placed under a traction restriction.
Lane Splitting & Filtering
Whether a motorcycle may ride between lanes of traffic, the newer lane-filtering statutes that permit it only at low speed and at a stop, the speed differentials written into those laws, and the states where it remains unlawful or simply unaddressed.
Plate Covers & Obstruction
Whether a licence plate may sit behind a clear cover or frame at all, the rules against obscuring the state name, registration stickers or any character, plate-flipping and reflective-spray prohibitions, and mounting height and angle requirements.
Dash Cam & Windshield Mounting
Where a camera, phone mount or GPS unit may legally sit on the windshield, the size and corner-placement allowances states carve out of their windshield-obstruction statutes, and the separate audio-consent question when a dash cam records passengers.