When an individual volunteers his or her labor to a state or local governmental body or agency and receives pursuant to a statute or policy or an ordinance or resolution adopted by or applicable to the state or local governmental body or agency reimbursement in lieu of compensation at a nominal rate for normally incurred expenses or receives a nominal amount of compensation per unit of voluntary service rendered such reimbursement or compensation shall not be deemed a salary for the rendering of services or for purposes of granting, affecting or adding to any qualification, entitlement or benefit rights under any state, local government or publicly supported retirement system other than that provided under chapter 41.24 RCW.