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Circular Letters
The Bureau of Local Roads and Streets (BLRS) issues Circular Letters (CL) to: (1) Update or Issue BLRS Pamphlets, Booklets, Special Provisions, and/or Forms; (2) Provide advisory or general information issued by the Federal Government, other bureaus within IDOT, other state agencies, or other groups/organizations.
IDOT has categorized all of the Circular Letters (CLs) issued, since the last manual revision in 1989, into two categories:
- Informational: These letters provide advisories to local agencies. Electronic copies of these letters area available on the Informational tab below.
- Obsolete: The requirements in these letters no longer apply. Obsolete letters will not be available electronically. Please contact your district BLRS office for hard copies of these letters.
Informational Circular Letters
The following Circular Letters (CL) have been issued by the Bureau of Local Roads and Streets (BLRS) and are informational in nature. These letters were issued to the appropriate Local Agency and/or Consultants who were on the BLRS's mailing list. Please view the Informational CL list PDF for more information.
Many of these CL contain attachments that may have been revised and/or are now available electronically through the internet.
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