In general

The Secretary shall determine an appropriate procedure for redistribution of allotments from States that were provided allotments under this section for a fiscal year but that do not expend all of the amount of such allotments during the period in which such allotments are available for expenditure under subsection (e), to States that the Secretary determines with respect to the fiscal year for which unused allotments are available for redistribution under this subsection, are shortfall States described in paragraph (2) for such fiscal year, but not to exceed the amount of the shortfall described in paragraph (2)(A) for each such State (as may be adjusted under paragraph (2)(C)).