Dear Ms. Stoia,
Thank you for posting your request on History Hub!
A pdf of the GSA Standard Form 180 is available on NARA’s website at https://www.archives.gov/files/research/order/standard-form-180.pdf. It consists of three pages including the Instructions (page 1), the form itself to be filled out & signed (page 2), and the various addresses where to mail it depending on the service and time period of service (page 3).
We hope this is helpful.