20 CFR 402.130 - How to request a record.
You may request a record in person or by mail or by electronic telecommunications. To the extent practicable, and in the future, we will attempt to provide access for requests by telephone, fax, Internet, and e-mail. Any request should reasonably describe the record you want. If you have detailed information which would assist us in identifying that record, please submit it with your request. We may charge fees for some requests ( §§ 402.145-402.175 explain our fees). You should identify the request as a Freedom of Information Act request and mark the outside of any envelope used to submit your request as a “Freedom of Information Request.” The staff at any Social Security office can help you prepare this request.