This chapter shall not apply to house trailers parked on the county fairgrounds, city parks, or other grounds owned by governmental bodies, provided the trailers are used for the purpose of providing shelter for persons or families engaged in the maintenance or protection of the grounds, or participation in events then being held on said grounds, and the use is certified to the city by the appropriate governmental body controlling the use of the grounds.
(1982 Code, § 151.04)  (Ord. 1973-15, passed 6-4-1973)