The DC Office of Contracting and Procurement (OCP) works in collaboration with several District agencies to verify information provided by potential offerors. For more information about those agencies, review the links below.  

District of Columbia Agencies

• DC Department of Small and Local Business Development
  • Database of Certified Business Enterprises (CBEs)
  • FY 2020 DSLBD Green Book (SBE Opportunity Guide) 
• DC Department of Employment Services
• DC Department of Consumer and Regulatory Affairs
• DC Office of the Chief Financial Officer
• DC Office of Tax and Revenue

Federal Agencies

• GSA
• GSA Library

Other Websites

• Dun & Bradstreet
• National Institute of Governmental Purchasing, Inc. (NIGP)
• State of Maryland Department of General Services
• National Association of State Procurement Officials (NASPO)
• Metropolitan Washington Airports Authority Contracting Opportunities
  • Metropolitan Washington Airports Authority Information, Policies and Procedures