Finds that: (1) A successful transfer of development rights program must consider housing affordable to all economic segments of the population in designated sending areas;

(2) Manufactured/mobile home parks have a long history as areas that provide housing opportunities for all economic segments of the population;

(3) The number of manufactured/mobile home parks is shrinking due to development pressures that threaten to eliminate this housing option; and

(4) The inclusion of manufactured/mobile home parks in the regional transfer of development rights program will assist in slowing the conversion of these areas.

Requires counties to use as a criteria to guide the designation of sending areas for participation in the regional transfer of development rights program that the land is in current use as a manufactured/mobile home park as defined in chapter 59.20 RCW.