For the purposes of this section, a winter-type mud and snow tire is any new, recapped, retreaded, or rebuilt tire for the rear wheels of motor vehicles or trackless trolleys having anti-skid patterns impressed or cut into the treaded surfaces to form bars, buttons, or blocks which may contain perforations, ingredients, or metallic elements specially designed to give effective traction on snow-, mud-, or ice-covered streets; and which tire is subject to approval as to type and condition by the Director of Transportation. It is unlawful for any non-fixed wheel vehicle for the public transportation of passengers for a fee or charge, including the vehicles commonly referred to as buses, trackless trolley, and taxicabs, to be or operate on any street or public place in Baltimore City during the period in any year commencing on November 1 and ending on the following April 1 without being properly equipped with winter-type mud and snow tires. Any person, firm, or corporation violating the provisions of this section shall be subject to the general penalties provided in <cite data-path="|31">this article</cite>, and a violation as to each and every vehicle is a separate violation. City Code, 1966, art. 31, §86 1976/83, art. 31, §62 Ord. 58-1226 Ord. 15-435