(1) This chapter is authorized by RCW 43.22.335 through 43.22.434 and covers the requirements for:

(a) Obtaining state-plan status if you manufacture recreational park trailers for sale or lease in Washington state.

(b) Obtaining state-plan insignia if you manufacture recreational park trailers for sale or lease in Washington state.

(2) This chapter applies to:

(a) Manufacturers, dealers and individuals who build for sale, sell, or lease recreational park trailers in Washington state; and

(b) Manufacturers, dealers, and individuals who alter recreational park trailers for sale or lease in Washington state.