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Illinois Department of Transportation

Professional Transportation Bulletin

IDOT advertises for professional services four times a year via the Professional Transportation Bulletin (PTB) and makes this schedule public via the PTB Schedule (below). The PTB contains information pertaining to the advertisements for offers of interest for professional engineering, land surveying and architectural services for IDOT projects. On occasion, a special bulletin is necessary. Below you will find the active PTB as well as supplementary information. If wishing to review archived bulletins and press releases please navigate to archives.

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Negotiation Information

To view the most current negotiation meeting information on particular advertised items please click here. This information has not been finalized and is subject to change. Contact the appropriate District for questions regarding a particular Item.

Tentative PTB Schedule

Activity Publish PTB Statements of Interest Due Selection Meeting

Statement of Interest

Engineering, land surveying and architectural firm selections for PTB items are Quality Based. The review of the department’s governing state statute (30 ILCS 535/1) is encouraged.

Firms interested in a project, are required to submit an SOI by the advertised due date to be considered for an advertised project. To submit an SOI, log on to the Engineering Prequalification and Agreements System (EPAS) and follow the prompts for requirements and review the EPAS Instruction Manual

Selection will occur on the date specified in the published PTB.

Things to Keep in Mind While Completing a SOI

Disadvantaged Business Enterprises (DBE) Goal

IDOT strives to maintain an equitable distribution of work for its many business partners. One way to accomplish this is through the department’s administration of the federally mandated DBE Program. The DBE program is intended to provide contracting opportunities to small businesses owned and controlled by socially and economically disadvantaged individuals. On most projects a DBE percentage goal is required.

To view the directory of DBE firms that are certified please view the IL UCP (updated every month).

Look Aheads

As a courtesy to the professional services industry serving IDOT, the Department is providing a preliminary list of projects we provisionally anticipate advertising for Quality Based Selection (QBS) procurement during the remainder of FY 2025 as well as FY 2026. The information in this document is subject to change and provided for informational purposes only. Consequently, the Department makes no commitment that the items listed will definitively be advertised during the prescribed timeframe. In accordance with Illinois procurement laws and rules, under no circumstances should firms contact the Department to request additional information regarding the timing of the advertisement of the projects listed. FY2026 / FY2027 Look Aheads

Professional Transportation Bulletin Archives

The following is a collection of past professional transportation bulletins advertised by IDOT. Contained below by year advertised: Professional Transportation Bulletin and press releases.

Category Title