45 C.F.R. § 1321.99
(a) Section 310 of the Act (42 U.S.C. 3030) authorizes the use of funds during Presidentially declared major disaster declarations under the Stafford Act (42 U.S.C. 5121-5207) without regard to distribution through the State agency's intrastate funding formula or funds distribution plan when the following apply:
(b) When implementing this authority, State agencies may set aside funds, up to five percent of their total Title III allocations, if specified as being allowed to be withheld for the purpose in their approved intrastate funding formula or funds distribution plan, or with prior approval from the Assistant Secretary for Aging. The following apply for use of set aside funds: