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Attainment Demonstration (Year 2007) SIP

skyThe Attainment Demonstration SIP designated certain transportation projects, termed Transportation Control Measures (TCMs), as Federal Air Quality Transportation Commitments. This revision listed commitments by specific project location and requires implementation no later than July 2007.

This SIP revision was written in 1999 and forecasted projects scheduled through the year 2007. Since 1999, circumstances related to project design and construction have caused some individual projects to fall behind schedule or become unfeasible. Because the Attainment Demonstration SIP listed projects by individual location, these delayed or cancelled TCMs must be substituted with other projects. FWTAexas Administrative Code (TAC) allows for metropolitan planning organizations such as the NCTCOG to conduct a substitution process by which they may replace invalid TCMs with other projects, provided that 1) the replacement project provides an equal or greater air quality benefit, and 2) that the substitution process involves an interagency consultation process. On May 18, 2006, NCTCOG staff hosted a TCM Substitution Workshop that included representatives from local governments, the Texas Commission on Environmental Quality (TCEQ) and the Environmental Protection Agency (EPA), to formally conduct the project substitution as specified in the TAC. Information regarding this substitution process was also presented to the general public during public meetings on June 12-13, 2006. The Surface Transportation Technical Committee (STTC), which is the technical body for the NCTCOG, took action on June 23, 2006, to recommend that the NCTCOG policy body, the Regional Transportation Committee (RTC), approve the recommendations of the TCM Substitution Workshop. The RTC took action on July 13, 2006, to approve the final recommendations of the TCM Substitution process in RTC Resolution R06-06, which is posted below.  Staff fowarded the recommendations along with the RTC Resolution to the TCEQ on July 17, 2006, and hopes to receive TCEQ Commission action at their January meeting.

The second link below summarizes the total commitment obligation for the Attainment Demonstration SIP. Note that the total emission benefit associated with the proposed substitute projects exceeds the total emission benefit associated with the projects that require substitution (that must be removed from the SIP). The following links list individual projects as they have been classified by NCTCOG staff: completed project, projects that are underway for implementation no later than July 2007, projects that require substitution (this includes both cancelled projects and projects that have been delayed beyond July 2007), and projects recommended as substitutes for those that will not be completed. The projects are organized into separated program areas, and sorted within that program area by city. Any questions or comments regarding these projects may be directed to Lori Pampell, Transportation Planner, at 817-695-9232, or by email at

TCEQ will be holding a hearing regarding the TCM Substitution on September 28, 2006, at 6:30 p.m. at the NCTCOG offices.  This hearing will be open to the public.

RTC Resolution R06-06 [PDF]

Summary- Revised July 24, 2006 [PDF]

Completed Projects- Revised July 24, 2006 [PDF]

Projects On Schedule- Revised July 24, 2006 [PDF]

Projects that Require Substitution- Revised July 24, 2006 [PDF]

Recommended Substitutes- Revised July 24, 2006 [PDF]

Attainment Demonstration Methodology [PDF]

4/24/2018  05/19/2009  CG

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