§ 70.011  USE OF SIREN.
   It shall be unlawful for any person except a person operating an authorized emergency vehicle to use a siren on any vehicle; provided, that those who are permitted to use a siren shall be required to use the same only when an emergency call is being made.
Penalty, see § 70.999
Statutory reference:
   Similar provisions, see Tex. Transportation Code § 547.501