The DCHC MPO adopted the updated Triangle Region Transportation Air Quality Conformity Determination Report (AQ CDR) on August 9, 2023.  This update was required because the MPO amended the 2050 MTP (Metropolitan Transportation Plan) and adopted the FY 2024-2033 TIP (Transportation Improvement Program).  

Download a copy of the AQ CDR Here.

The Air Quality Conformity Determination Report (AQ-CDR) demonstrates that certain pollutant emissions from the future transportation sector will not exceed a specified threshold. Although the Triangle area is in attainment for all of the controlled emissions, the area is in a maintenance program for ozone and therefore must demonstrate conformity for nitrous oxides, which help create ozone.  The updated AQ CDR demonstrates that the implementation of the 2050 MTP will result in a level of pollutant emissions that meet the air quality thresholds.

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