The answers to the questions on CalSTRS.com Web site are applicable only to the members or beneficiaries of CalSTRS. Although the WEP and GPO may apply to any person receiving a retirement benefit from employment for which Social Security taxes were not taken, CalSTRS makes no representation as to how other non-Social Security covered retirement systems interpret the WEP and GPO. Figures used in examples are approximate; for an accurate estimate, use Social Security's WEP Online Calculator when estimating a Social Security retirement benefit amount or the GPO calculator when estimating the spousal or surviving spousal benefit. For additional information regarding Social Security benefits, contact the Social Security Administration online or at (800) 772-1213, or TTY (800) 325-0778.