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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

Agency Alert

Welcome to the new IDOT home page.  Our location has changed, please update any bookmarks.

Procedures

Policy Memorandums

Clicking a hot link below will take you directly to the policy memorandum with specific information explaining the process to become a producer/supplier for the material listed in the title.

Laboratory/Field Test Procedures

There are currently no laboratory or field test procedures on the internet.  Illinois Modified AASHTO T 267, T 288, T 289, T 290, and T 291 have been incorporated into the December 1, 2017, Manual of Test Procedures for Materials

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