139.17 PAYROLL DEDUCTIONS.
   Federal and State withholding taxes and Social Security taxes are deducted from every paycheck. Retirement contributions are deducted from all full-time employees. Voluntary deductions for health care benefits, supplemental retirement and the like can be made after an employee completes the necessary authorization forms.
Non-mandatory deductions will not be withheld through the City payroll unless approved by the Mayor.
   COS deducts court-ordered garnishments for personal debts - such as child support - without the employee's prior authorization. Deductions for federal, state, and city tax liens also can be made by COS without prior employee authorization.