PDA may have members’ dues deducted from their paychecks under the County Controller’s procedures. Deductions shall be made only on the employee’s signed authorization on a form furnished by the County and shall continue until 1) the employee revokes the authorization in writing or 2) the employee transfers to another representation unit. Employees may also authorize dues deduction for the California Probation, Parole and Correctional Association, but deduction may not be authorized for any other organization.