Whenever any pump, receptacle, or other container is maintained or used to serve more than one driveway, the signs or labels required by this chapter shall be placed upon both sides of such pump, receptacle, or other container so that one set of signs or labels shall be clearly visible from each such driveway.

Wherever any pump, receptacle, or other container is maintained or used to serve only one driveway, the signs or labels required by this chapter shall be upon the side of such pump, receptacle, or other container adjacent to such driveway.