- "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