RCW 35.17.230: Legislative—Ordinances—Time of going into effect.

Ordinances shall not go into effect before thirty days from the time of final passage and are subject to referendum during the interim except:

(1) Ordinances initiated by petition;

(2) Ordinances necessary for immediate preservation of public peace, health, and safety which contain a statement of urgency and are passed by unanimous vote of all the commissioners;

(3) Ordinances providing for local improvement districts.