If a person who is not an employee initiates a request to change their SSN on the Central ID Repository (CIDR) file, authorized employees can submit that request via the CIDR application. [Adobe Reader is required to view and print PDF documents. Download Adobe Reader for free.] 

Employees:

• University Park Employees: Complete a new W4 form with the correct number or the newly issued number (if you are replacing a temporary number). Provide a legible copy of your Social Security Card and hand deliver both forms to the Payroll Office, 307 Rider building.
• Non-University Park Employees: Complete a new W4 form with the correct number or the newly issued number (if you are replacing a temporary number). Provide a legible copy of your Social Security Card and forward both forms (along with a brief note explaining the error) to the Payroll Office, 307 Rider Building, University Park, PA 16802.
• For additional information, call the Payroll Office at 865-7621. You can also visit the Payroll forms Web site at http://www.controller.psu.edu/divisions/payrolloffice/forms.html.