There are approximately 13,000 (active/inactive) producers and/or suppliers listed with the Department of Transportation. Updated monthly, the current List of Producers and/or Suppliers provides an alphabetic and a numerical listing including producer/supplier number, name and location.
Producers and/or Suppliers interested in providing materials to be used in construction projects must first obtain approval by the department.
Producer and/or suppliers may be classified as "inactive" or "d-flagged" for several reasons which include: producer/supplier going out of business, lack of providing material for several years, material problems, etc. but have the capability of becoming "active" status again by complying with the requirements as stated in the appropriate material policy memorandums
Navigate to the appropriate material lab after getting a P/S number to continue:
Bureau of Materials
Office of Highways Project Implementation
The website is IDOT's primary way of doing business. The subscription server emails are an added courtesy IDOT provides. For instructions to subscribe and unsubscribe click the following links.
To subscribe or unsubscribe, click on one or more of the links below and send the blank email(s) that pop up. Do not add anything to the subject line or to the body of the email.CBM Policy Memorandums