(a) * * *
(1) Such determination shall be made by the Secretary within twenty (20) business days after receipt of such request, except as provided in paragraphs (b) and (e)(4) of this section.
* * * * *
(3)(i) * * *
(i) * * *
(B) Be filed not later than thirty (30) calendar days following receipt of notification of full or partial denial of records requested.
(ii) The Chairman or the Chairman's specific delegate, in his or her absence, shall make a determination with respect to that appeal within twenty (20) business days after receipt of such appeal, except as provided in paragraph (b) of this section.
* * * * *
(b) * * *
(4) The Secretary may make an initial written request to the requestor for information to clarify the request which will toll the 20-day processing period until such information has been received. The 20-day processing period will recommence after receipt of the requested information.
(5) The Secretary may also make written requests to clarify issues regarding fee assessments. Such written requests will toll the 20-day processing period until such information has been received from the requestor. The 20-day processing period will recommence after receipt of the requested information.
* * * * *
(d) Multitrack processing of requests. The Secretary uses multitrack processing of FOIA requests. Requests which seek and are granted expedited processing are put on the expedited track. All other requests are designated either simple or complex requests based on the amount of time and/or complexity needed to process the request. A request may be considered simple if it involves records that are routinely requested and readily available.
(e) Expedited processing of requests. (1) The Secretary will provide for expedited processing of requests for records when the person requesting the records can demonstrate a compelling need.
* * * * *
(4) The Secretary shall determine whether to provide expedited processing, and provide notice of the determination to the person making the request, within ten (10) calendar days after the receipt date of the request.
* * * * *