No person, firm or corporation shall propel or move, or cause to be propelled or moved over and along any street within the limits of the city, any tractor or other engine unless the tires of the wheels thereon are smooth, except by permission of the Board of Public Works and Safety.
(Prior Code, § 81.2) (Ord. 1983-11, passed 6-21-1983) Penalty, see § 70.99