In accordance with GSAM/R 538.7104-3(b)(1)(v), “A sole source or limited-sources justification for a Federal Supply Schedule order is permitted when a law expressly authorizes or requires that the pur... In accordance with GSAM/R 538.7104-3(b)(1)(v), “A sole source or limited-sources justification for a Federal Supply Schedule order is permitted when a law expressly authorizes or requires that the purchase be made from a specified source". See the attachment for more details.