12 C.F.R. § 271.12
(b) Multitrack processing.
(1) The Committee provides different levels of processing for categories of requests under this section.
(c) Expedited processing.
(1) A request for expedited processing may be made at any time. A request for expedited processing must be clearly labeled “Expedited Processing Requested.” The Committee will process requests and appeals on an expedited basis whenever it is determined that they involve:
(e) Time limits. The time for response to requests shall be 20 working days from when a request is perfected. Exceptions to the 20-day time limit are only as follows:
(3) In unusual circumstances, as defined in 5 U.S.C. 552(a)(6)(B), the Committee may: