Providing phased retirement under the public employees retirement +association and voluntary hour reduction or unpaid leave options to certain local+ public employees, requiring the signing of an agreement before a certain +date to work a reduced number of hours for the phased retirement and hour +reduction options and the leave option to be exercised between certain dates; requiring+ local government units before agreeing to the options to designate the job classifications or positions qualifying for the options; specifying +certain restrictions (mk)