§ 70.20 VEHICLES; MUFFLER.
   (A)   Every motor vehicle operated within this city shall be provided with a muffler in good working order to prevent excessive or unusual noise or smoke.
   (B)   It shall be unlawful to use a "muffler cut-out" on any motor vehicle upon any streets; provided, the provisions of this section shall not apply to authorized emergency vehicles.
(Neb. RS 60-6,286) (1973 Code, § 5-306) Penalty, see § 70.99