Contracting officers shall not award to any of the entities listed on the Specially Designated Nationals (SDN) List, available on the Department of Treasury's Office of Foreign Assets Control Web site at http://www.treas.gov/ofac/. Contracting officers shall consult this list prior to award for any dollar amount. This list is included in searches conducted on the System for Award Management (SAM) Web site at https://www.sam.gov.
48 C.F.R. §§609.404-70