(a) A denial of a written request for a record or information that complies with the requirements of § 303.7 shall be in writing and shall include, as applicable: (1) The name and title or position of the responsible IDA;(2) The signature of the agency's FOIA Officer, or in the case of denials of requests concerning OIG records, the signature of the Inspector General or designee;(3) A brief statement of the reasons for the denial, including any FOIA exemption applied in denying the request;(4) An estimate of the volume of any records or information withheld, such as the number of pages or some other reasonable form of estimation, although such an estimate is not required if the volume is otherwise indicated by redactions marked on records that are disclosed in part or if providing an estimate would harm an interest protected by an applicable exemption;(5) For any information denied under Exemption 3, the specific statute relied upon to deny the information along with a short description of the statute;(6) A statement that the requester must appeal no later than 90 days after the date of the denial and along with instructions on how to appeal to the appellate authority. The instructions will include the appellate authority's duty title, the mailing address for the appeal, and instructions on how the requester can appeal electronically; as defined under § 303.13 ; and(7) A statement notifying the requester of the assistance available from the Peace Corps' FOIA Public Liaison and the dispute resolution services offered by OGIS. 68 FR 66008 , Nov. 25, 2003, as amended at 79 FR 19819 , Apr. 10, 2014