An “[a]ssembled land exchange means an exchange of Federal land for a package of multiple ownership parcels of non-Federal land consolidated for purposes of one land exchange transaction.” 36 C.F.R. § 254.2; An “[a]ssembled land exchange means the consolidation of multiple parcels of Federal and/or non-Federal lands for purposes of one or more exchange transactions over a period of time.” 43 C.F.R. § 2200.0-5(f).