The following requirements apply when we and a State negotiate a mutually agreed upon funds transfer procedure based on an estimate of the State's immediate cash needs:
(a) The State must ensure that the estimate reasonably represents the flow of Federal funds under the Federal assistance program or program component to which the estimate applies. The estimate must take into account seasonal or other periodic variations in activity throughout the period for which the Federal funds are available.
(b) As set forth in §§ 205.9 and 205.10, a Treasury-State agreement must include the method a State uses to develop, maintain, and document the estimate.