29 CFR 4901.34: Waiver or reduction of charges.

(a) The Disclosure Officer may waive or reduce fees otherwise applicable under this subpart when disclosure of the information is in the public interest because it is likely to contribute significantly to public understanding of the operations or activities of the Government and is not primarily in the commercial interest of the requester. A fee waiver or reduction request must set forth full and complete information upon which the request is based.

(b) If the Disclosure Officer determines that the request for fee waiver or reduction will be denied, the requester will be so advised in writing with a brief statement of the reasons for the denial. The writing will include the name and title or position of the person(s) responsible for the denial, outline the appeal procedure available, and notify the requester of the right to seek dispute resolution services from a PBGC FOIA Public Liaison or the Office of Government Information Services.