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All engineering, land surveying and architectural consultants interested in providing services to IDOT, whether as a prime or subconsultant, must be prequalified with the department. IDOT prequalifies architectural/engineering consultants in multiple transportation categories of service. Prequalification is based on the firm’s and the individual’s professional experience and qualification. Annual updates to statements of experience and financial condition must be completed to maintain prequalification status. The process is governed by state Statute (30 ILCS 535/1).

There are approximately 400 firms prequalified with IDOT that are able to submit interest on engineering, land surveying and architectural project advertisements. Updated every Friday, the lists below provides the firm’s name, address, DBE status, contact person, phone number, fax number and prequalified IDOT category or categories. The lists posted are from the firms last approved Statement of Experience and Financial Condition. Firms with information in for review may have additional prequalification categories or may not have all the prequalification categories listed. Firms can track the progress of their Statement of Experience and Financial Condition review by viewing Status Column and the Category Column in EPAS.

Outlined below is information on how your firm can become prequalified, renew their prequalification, and/or add prequalification categories:


  1. Review the Description and Minimum Requirements for Prequalification to select which category or categories best matches the firm’s expertise.
  2. Request access to IDOT's Engineering Prequalification and Agreement System (EPAS)
    Firms new to prequalification with IDOT must request an EPAS account.  EPAS is a web-based database where Statements of Experience and Financial Condition (SEFC) and Statements of Interest (SOI) are submitted electronically to IDOT. To request an account:

    Email  Indicate your firm’s interest in becoming a prequalified engineering consultant and attach the federal form, W-9.

    Once an account has been established, EPAS can be accessed. The EPAS Instruction Manual is also provided to assist in the navigation of the system.

  3. Submit an application: To become Prequalified, the Statement of Experience and Financial Condition (SEFC) must be completed directly in EPAS and EPAS will clarify all requirements.
  4. Check status of application: Log On to EPAS. Status of application will be displayed.

Additional forms that will be required within the SEFC are as follows:

  • BDE DISC 2 Template
    Consultant's Disclosure Statement; Form A, Financial Information & Potential Conflicts of Interest Disclosure; Form B, Other Contracts & Procurements Related Information Disclosure
  • BDE 2900 - Disclosure of Business Operations in Iran


All firms are required to renew its Statement of Experience and Financial Condition (SEFC) annually. This function must be performed in the department's EPAS system. 

Add Prequalification Categories

If your firm is interested in applying for prequalification in additional categories, the latest approved Statement of Experience and Financial Condition (SEFC) must be updated on EPAS along with the required information.

Need Help?

Jenni LeSeure
(217) 782-6916
Unit Chief of Consultant Services
Preliminary Engineering Section
Bureau of Design and Environment