November 18, 2025 Transportation Improvement Program conformity analysis open for public comment through December 18, 2025 The Chicago Metropolitan Agency for Planning (CMAP) released a conformity amendment to the FFY 2023-2028 Transportation Improvement Program (TIP). This amendment is open for public comment, from Monday, November 18 to Thursday, December 18. Conformity analysis is part of the transportation modeling process that evaluates the impact on air quality of projects in the ON TO 2050 plan update and the FFY 2023-2028 TIP, as amended. On-road vehicle emissions are reviewed to determine that the region will reach national ambient air quality goals. Please review the ON TO 2050/TIP Conformity Analysis and TIP Formal Conformity Amendment 26-03. Comments regarding the individual TIP conformity amendments may be submitted to CMAP by mail, email (transportation@cmap.illinois.gov), or phone (312-454-0400). Article by Mike Sobczak Sarah Stolpe Stay connected with your community Newsletter sign-up Opens in a modal Related news Click to read Time for action: a climate roadmap for Greater Chicago Posted on Click to read Time for action: a climate roadmap for Greater Chicago Click to read Early takeaways from Governor Pritzker’s FY2027 state budget proposal include transit and climate funding impacts Posted on Click to read Early takeaways from Governor Pritzker’s FY2027 state budget proposal include transit and climate funding impacts Click to read New CMAP resources chart path to tackle congestion Posted on Click to read New CMAP resources chart path to tackle congestion Click to read A path to a climate resilient transportation system in northeastern Illinois Posted on Click to read A path to a climate resilient transportation system in northeastern Illinois