(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 request shall set forth full and complete information upon which the request for waiver is based.

(b) The disclosure officer may reduce or waive fees applicable under this subpart when the requester has demonstrated his inability to pay such fees.