Iowa Code Title II. Elections and Official Duties [Chs. 39-79] § 70A.15. Payroll deduction

1. The responsible official in charge of the payroll system may deduct from the salary or wages of a state officer or employee an amount specified by the officer or employee for payment to a charitable organization if:

2. Moneys deducted pursuant to this section shall be paid over promptly to the appropriate charitable organization. The deduction may be made notwithstanding that the compensation actually paid to the officer or employee is reduced to an amount below the minimum prescribed by law. Payment to an officer or employee of compensation less the deduction shall constitute a full and complete discharge of claims and demands for services rendered by the employee during the period covered by the payment. The request for the deduction may be withdrawn at any time by filing a written notification of withdrawal with the responsible official in charge of the payroll system.