The Washington association of sheriffs and police chiefs is hereby declared to be a combination of units of local government: PROVIDED, That such association shall not be considered an "employer" within the meaning of RCW *
41.26.030(2) or **
41.40.010(4): PROVIDED FURTHER, That no compensation received as an employee of the association shall be considered salary for purposes of the provisions of any retirement system created pursuant to the general laws of this state: PROVIDED FURTHER, That such association shall not qualify for inclusion under the unallocated two mills of the property tax of any political subdivision: PROVIDED FURTHER, That the association shall not have the authority to assess any excess levy or bond measure.