Pennsylvania § 4305 - Vehicular hazard signal lamps.
Full text of Pennsylvania Pennsylvania Consolidated Statutes § 4305 — Vehicular hazard signal lamps., with citation guidance and answers to common questions.
§ 4305. Vehicular hazard signal lamps.
(a) General rule.--Simultaneous flashing of the two front and two rear signal lamps shall indicate a vehicular traffic hazard. The driver of a motor vehicle equipped with simultaneous flashing signals shall use the signals when the vehicle is stopped or disabled on a highway, except when the vehicle is stopped in compliance with a traffic-control device or when legally parked. Drivers of other vehicles shall exercise extraordinary care in approaching, overtaking and passing a vehicle displaying vehicular hazard warning signals.
(b) Use outside business and residence districts.--Outside of a business or residence district:
(1) The driver of a motor vehicle or combination equipped with simultaneous flashing signals shall use the signals when the vehicle is unable to maintain a speed of at least 25 miles per hour because of weather, grade or other similar factors or is unable to maintain a speed consistent with the normal flow of traffic.
(2) The driver of a bus equipped with simultaneous flashing signals shall use the signals when the bus is stopped with one or more wheels on the roadway between dusk and dawn for the purpose of receiving or discharging passengers.
(c) Use below minimum speed limit.--The driver of a motor vehicle or combination equipped with simultaneous flashing signals shall use the signals when the vehicle is not maintaining at least the minimum speed established in accordance with the provisions of section 3364 (relating to minimum speed regulation).
(June 25, 1987, P.L.30, No.13, eff. 60 days)
Cross References. Section 4305 is referred to in section 3327 of this title.
Source: official Pennsylvania text · Last verified 2026-08-27
Frequently Asked Questions About Pennsylvania § 4305
What does Pennsylvania Consolidated Statutes § 4305 cover?
Section 4305 ("Vehicular hazard signal lamps.") is part of the Pennsylvania Consolidated Statutes, the codified statutory law of Pennsylvania. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite Pennsylvania § 4305?
A common citation format is "Pennsylvania Consolidated Statutes § 4305" (Pennsylvania). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of Pennsylvania law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the Pennsylvania official source linked on this page or consult a licensed Pennsylvania attorney.
How does Pennsylvania § 4305 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Pennsylvania can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in Pennsylvania.