Illinois Department of Transportation, Erica Borggren, Acting Secretary
Patrick J. Quinn, Governor
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Sole Source Procurements

Sole source procurements are permissible when a requirement is available from only a single supplier or when only one supplier is deemed economically feasible. A requirement for a particular proprietary item does not justify sole source procurement if there is more than one potential bidder or offer authorized to provide that item. The following are examples of circumstances that could necessitate sole source procurement.
  • Where the compatibility of equipment, accessories, replacement parts, or service is a paramount consideration;
  • Where a sole supplier's items are needed for trial use or testing
  • Where a sole supplier's item is to be procured for commercial resale
  • Where public utility regulated services are to be procured
  • Where the item is copyrighted or patented and the item or service is not available except from the holder of the copyright or patent
  • The procurement of the media for advertising
  • The procurement of art or entertainment services
  • Changes to existing contracts

New sole source requirements as a result of procurement reform (Section 20-25 [a-c]):

  • All sole source procurements now require prior approval from the appropriate Chief Procurement Officer.
  • Sole Source procurements require a public hearing before the contract may be executed.
    • There is a 14-day posting requirement on the Department of Central Management Services Illinois Procurement Bulletin or the Department’s Professional Transportation Bulletin before the public hearing may be held.
    • The 14-day posting must include a sole source justification form developed by the Procurement Policy Board, a description of the item to be procured, the selected vendor, and the date, time, and location of the public hearing.
  • No sole source procurement may be used to increase the cost of a Professional and Artistic Services contract by more than 5% of the total initial award or to extend the contract for more than 2 months in length.

Please proceed to the appropriate information by selecting the categories below:



Construction Contracting
Architectural & Engineering Consultant Procurements
Land Acquisition Services
Non-Construction Procurements
Emergency Procurements
Sole Source Procurements
Procurement Communications
Prequalification Enhancement Committee
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