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  • "How to Do Business With the State for Commodities, Equipment, Services and Supplies"
  • Answers questions about bidding on contracts and selling goods and services to the State of Illinois
  • View instructions for obtaining and submitting bids
  • "How to Respond to State of Illinois Bid Invitations for Commodities, Equipment, and Supplies"
  • Explains the state's purchasing process and how to read and respond to Invitations For Bid