Please visit the San Joaquin County Employeesâ Retirement Association (SJCERA) at www.sjcera.org for more information. NOTE:  If you are receiving a retirement allowance from another California county covered by the County Employeesâ Retirement Act of 1937 or from any governmental agency covered by the California Public Employeesâ Retirement System (PERS), you are advised to contact the Retirement Officer of the Retirement Plan from which you retired to determine what effect employment in San Joaquin County would have on your retirement allowance. or less, restraining, lifting/turning people; Vision â frequent color perception; occasional eye/hand coordination, peripheral vision and depth perception; frequent reading; Dexterity â occasional holding and repetitive motion; frequent reaching, grasping and writing; Hearing/Talking â constant hearing normal speech, talking in person, talking on the telephone; frequent hearing on the telephone and hearing faint sounds.