68.12 NO TRUCK OR TRAILER PARKING ZONES.
   On all streets designated by this section as no truck or trailer parking zones, signs giving notice of said prohibition shall be posted adjacent to the roadway of the street. When such signs have been posted, no person shall park a truck, trailer, or semi-trailer on the roadway of a street in a no truck or trailer parking zone.
      1.   Designation of Zones. The following parts of streets are hereby designated as no truck or trailer parking zones:  
         A.   South 7th Street on the east side from 2nd Avenue South to 4th Avenue South.
         B.   South 9th Street on both sides from 4th Avenue South to 5th Avenue South;
         C.   South 10th Street on both sides from 4th Avenue South to 5th Avenue South;
         D.   South 11th Street on both sides from 4th Avenue South to 5th Avenue South;
         E.   South 12th Street on both sides from 4th Avenue South to 5th Avenue South;
         F.   5th Avenue South on both sides between 8th Street and 12th Street.
         G.   The east-west alley from the north-south alley to North 14th Street in Block 72 of the Original City of Denison.
(Ord. 1491 - Sep. 18 Supp.)
      2.   Truck and Trailer Parking Restrictions in Residential Areas. On all streets lying in areas zoned as residential, no garbage trucks or trailers, no vehicles or trailers used for hauling recycled materials, no livestock trucks or trailers, and no trucks or trailers hauling flammable or combustible materials shall park in excess of three hours, except as provided in subsection 3 of this section. 
      3.   Special Permit for Livestock Trailers. The Police Chief may grant a special permit for overnight parking of clean livestock trailers in a residential area when such trailers are being used to move household goods, provided that said trailers are not omitting any odor.