Every motor vehicle when operated upon a highway shall be equipped with a horn in
good working order and capable of emitting sound audible under normal conditions from
a distance of not less than 200 feet.
No motor vehicle shall be equipped with nor shall any person use upon a vehicle any
siren, whistle, or bell except as otherwise permitted in this paragraph. It is permissible
but not required that any vehicle be equipped with a theft alarm signal device which
is so arranged that it cannot be used as an ordinary warning signal. Every emergency
vehicle shall be equipped with a siren, whistle, or bell, capable of emitting sound
audible under normal conditions from a distance of not less than 500 feet and of a
type approved by the director, but such equipment shall not be used except when such
vehicle is operated in response to an emergency call or in the immediate pursuit of
an actual or suspected violator of the law, in which said latter events the driver
of such vehicle shall sound such equipment when necessary to warn pedestrians and
other drivers of the approach thereof.
(C.O. 503-39; a. Ord. No. 47-1971, eff. Feb. 10, 1971; reordained as C.M.C. 503-39,
eff. Jan. 1, 1972)