Slow - moving vehicle emblem required--Place of mounting--Violation as petty offense

All farm machinery, including animal drawn vehicles, and highway construction and maintenance vehicles which are designed for operation at a rate of speed of twenty - five miles per hour or less or such vehicles when operated at speeds of twenty - five miles per hour or less, when operated on a public highway, shall display a slow - moving vehicle emblem. Said slow - moving vehicle emblem shall be mounted on the rear of a slow - moving vehicle in such a position and condition as to be clearly visible. A violation of this section is a petty offense. Source: SL 1970, ch 189 , §§ 1, 4; SDCL Supp, §