2010 Pennsylvania Code
Title 75 - VEHICLES
Chapter 45 - Other Required Equipment
4535 - Audible warning devices.

     § 4535.  Audible warning devices.
        (a)  General rule.--Every motor vehicle operated on a highway
     shall be equipped with a horn or other audible warning device of
     a type approved in regulations of the department.
        (b)  Certain sound devices prohibited.--Except as
     specifically provided in this part or by regulations of the
     department, no vehicle operated on a highway shall be equipped
     with a siren, bell, whistle or any device emitting a similar
     sound or any unreasonably loud or harsh sound.
        (c)  Exceptions.--This section shall not apply to any special
     mobile equipment, commercial implement of husbandry or implement
     of husbandry that is not so equipped by the original
     manufacturer.
     (June 23, 1982, P.L.605, No.171, eff. imd.; Dec. 18, 1992,
     P.L.1411, No.174, eff. 60 days)

        1992 Amendment.  Act 174 amended subsec. (c).