An SF-50 is the Standard Federal form for Notification of Personnel Action. If you are a current or former Federal employee, you must include a copy of your latest SF-50 with your application as proof of your Federal service and civil service status. If you are a current Federal employee, you may obtain a copy of your latest SF-50 from your agency's human resources office. If you are a former Federal employee, you may obtain it by contacting us at the following address:
National Personnel Records Center
111 Winnebago Street
St. Louis, MO 63118-4126
Phone: 314-801-9250
E-mail: cpr.center@nara.gov
Source: National Archives