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Air Quality Conformity

Transportation conformity is required by the Clean Air Act (section 176(c) (42 U.S.C. 7506(c)) to ensure that federal funding and approval are given to highway and transit projects that are consistent with ("conform to") the air quality goals established by a State Implementation Plan (SIP). Conformity is required to demonstrate thatthe MPO's Long Range Transportation Plan (LRTP) and Transportation Improvement Program (TIP) conform to the SIP.

Conformity Update & Public Comment Period 2008 Ozone Standard

A 30-day comment period ending April 8, 2013 was established to receive the public’s input on proposed action to demonstrate that MUMPO’s 2035 Long Range Transportation Plan and 2012-2018 Transportation Improvement Program conform to the new ozone standard (see below for details).

Conformity Analysis and Determination Report for the Metrolina Area:

In 2012 the National Ambient Air Quality Standard (NAAQS) for 8-hour ozone was revised to reflect improved scientific understanding of the health impacts of this pollutant. This is known as the 2008 8-hour ozone NAAQS. Effective July 20, 2012, the Environmental Protection Agency (EPA) declared the Charlotte area as being “marginal nonattainment” for the 2008 8-hour NAAQS. Federal regulations require MUMPO to demonstrate that its 2012-2018 Transportation Improvement Program (TIP) and 2035 Long Range Transportation Plan (LRTP) conform to the new standard. There are no TIP or LRTP amendments associated with this conformity determination.

Final 2008 Ozone Standard Conformity Determination Report (May 29, 2013)

I-77 Widening Public Comment Period

A 30-day public comment period was held from Saturday, March 23 to April 22, 2013 to receive the public’s input on proposed amendments to MUMPO’s 2035 Long-Range Transportation Plan (LRTP) and 2012-2018 Transportation Improvement Program (TIP) with regard to the proposed widening of I-77.  Public input was also received on the Conformity Determination Report for the amended LRTP and TIP.  Two public meetings were held on April 10 & 11, 2013 to receive input on the proposed project. The following links provide detailed information about the proposed amendments and the associated conformity determination.

LRTP and TIP Draft Amendment Report

Final- Air Quality Conformity Determination Report

The Final Air Quality Conformity Determination Report reflects the scenario for improvements to I-77 endorsed by the MPO Board on May 22, 2013.