For the purpose of establishing a parking and business improvement area, an initiation petition may be presented to the legislative authority having jurisdiction of the area in which the proposed parking and business improvement area is to be located or the legislative authority may by resolution initiate a parking and business improvement area. The initiation petition or resolution shall contain the following:
The initiating petition shall also contain the signatures of the persons who operate businesses and residential operators in the proposed area which would pay fifty percent of the proposed special assessments.
RCW 35.87A.030