National Institute of Government Purchasing (NIGP) National Association of State Procurement Officials (NASPO) Universal Public Purchasing Certification Council State of Missouri OA Division of Purchasing & Materials Management State of Missouri Procurement Code of State Regulations State of Missouri Constitution Missouri State Statutes State of Missouri Executive Order 03-27 "Missouri First" State of Missouri Executive Order 04-09 "Offshore purchases" Missouri Department of Labor & Industrial Relations Prevailing Wage Debarment List US Federal Government Excluded Parties List System University of Missouri Procurement Division St. Louis County Procurement Division State of Missouri Cooperative Procurement Program Kansas City Regional Purchasing Cooperative St. Louis County Open Cooperative IFB & RFPs American National Standards Institute Institute for Supply Management