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9% Rate-of-Progress SIP (1999)

skyThe 9% ROP SIP designated certain transportation projects, termed Transportation Control Measures (TCMs), as Federal Air Quality Commitments. This revision listed commitments by specific project location and required implementation no later than 1999.

This SIP revision was written to cover the timeframe from 1996 to 1999. During that timeframe, circumstances related to project design and construction caused some individual projects to fall behind schedule or become unfeasible. Because the 9% ROP 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 forwarded the recommendations along with the RTC Resolution to the TCEQ on July 17, 2006, and hopes to receive TCEQ action at their January meeting.

The second link below summarizes the total commitment obligation for the 9% ROP 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 projects, projects that require substitution (this includes both cancelled projects and those that were completed after the 1999 deadline), and projects recommended as substitutes for those that were not completed. The projects are organized into separate program areas, and sorted within that program area by city. Any questions or concerns 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 [PDF]

Completed Projects [PDF]

Projects that Require Substitution [PDF, 3MB]

Recommended Substitutes [PDF, 2MB]

9% Methodology [PDF]

5/6/2016 05/19/2009 CG

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