A. A motor vehicle when operated on a highway shall be equipped with a horn that is in good working order and that is capable of emitting sound audible under normal conditions from a distance of at least two hundred feet. Any horn or other warning device shall not emit an unreasonably loud or harsh sound or a whistle.
B. If reasonably necessary to ensure the safe operation of a motor vehicle, the driver shall give an audible warning with the driver's horn but shall not otherwise use the horn when on a highway.
C. A vehicle shall not be equipped with and a person shall not use on a vehicle a siren, whistle or bell, except as otherwise permitted in this section.
D. A vehicle may but is not required to be equipped with a theft alarm signal device that is arranged so that it cannot be used by the driver as an ordinary warning signal.
E. An authorized emergency vehicle may be equipped with a siren, whistle or bell that is capable of emitting sound audible under normal conditions from a distance of at least five hundred feet and that is of a type approved by the department. The siren shall not be used except when the vehicle is operated in response to an emergency call or in the immediate pursuit of an actual or suspected violator of the law or when necessary to serve a civil traffic complaint. During these events the driver of the vehicle shall sound the siren when reasonably necessary to warn pedestrians and other drivers of the approach of the emergency vehicle.
F. A siren shall be allowed on a fire engine that is solely used for hobby or display purposes and that has been issued a historic vehicle license plate pursuant to section 28-2484 if either of the following applies:
1. The siren is covered and is not activated while a person is transporting or driving the vehicle to or from a parade, authorized assemblage of historic vehicles or test.
2. The siren is activated only in a parade, for an authorized assemblage of historic vehicles or for testing purposes.
Notes of Decisions
Cited in
4
cases (
2 in the last 5 years), 1975–2023 · leading case:
State v. Martinez, 284 P.3d 893 (Ariz. Ct. App. 2012).
State v. Martinez, 284 P.3d 893 (Ariz. Ct. App. 2012).
· cites it 2× “1977) (affirming holding in Herderick that duty to use sirens is owed to other drivers on the roadway); A.R.S. § 28-954(E) (2012) (stating that "the driver of the [emergency] vehicle shall sound the siren when reasonably necessary to warn pedestrians and other drivers of the…”
Susan Porter v. Kelly Martinez, 68 F.4th 429 (9th Cir. 2023).
“” Ariz. Rev. Stat. § 28-954 (B). Arkansas: “When reasonably necessary to ensure safe operation, the driver of a motor vehicle shall give audible warning with his or her horn but shall not otherwise use the horn when upon a public street or highway.”
Herderick v. State, 530 P.2d 1144 (Ariz. Ct. App. 1975).
· cites it 4× “A.R.S. § 28-954(D) (1956) deals with what type of siren and when that siren must be used by “authorized emergency vehicles” it being admitted that patrolman McHenry’s vehicle was such an authorized emergency vehicle: “Any authorized emergency vehicle may be equipped with a…”
Susan Porter v. Kelly Martinez (9th Cir. 2023).
“” Ariz. Rev. Stat. § 28-954 (B). Arkansas: “When reasonably necessary to ensure safe operation, the driver of a motor vehicle shall give audible warning with his or her horn but shall not otherwise use the horn when upon a public street or highway.”
— Ariz. Rev. Stat. § 28-954(D) — 1 case
Herderick v. State, 530 P.2d 1144 (Ariz. Ct. App. 1975).
“A.R.S. § 28-954(D) (1956) deals with what type of siren and when that siren must be used by “authorized emergency vehicles” it being admitted that patrolman McHenry’s vehicle was such an authorized emergency vehicle: “Any authorized emergency vehicle may be equipped with a…”
— Ariz. Rev. Stat. § 28-954(E) — 1 case
State v. Martinez, 284 P.3d 893 (Ariz. Ct. App. 2012).
“1977) (affirming holding in Herderick that duty to use sirens is owed to other drivers on the roadway); A.R.S. § 28-954(E) (2012) (stating that "the driver of the [emergency] vehicle shall sound the siren when reasonably necessary to warn pedestrians and other drivers of the…”
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