29 CFR 1401.31 - Filing a request for records.
(a) Any person who desires to inspect or copy an Agency record should submit a written request to the Office of the General Counsel, Federal Mediation and Conciliation Service, 2100 K Street NW., Washington, DC 20427. The envelope [or cover sheet] should be marked “Freedom of Information Act request.” Electronic mail requests should be sent to email@example.com.
(b) Each request should reasonably describe the records being sought, so that the records requested may be located and identified. If the description is insufficient to locate the requested records, the officer processing the request will notify the requester and ask for additional information.