Transportation Conformity SIP and Rule Revisions
The Texas transportation conformity State Implementation Plan (SIP) and rule spell out the state's interagency consultation procedures and incorporate by reference the federal transportation conformity rule. The most recent state revision was adopted by the Texas Commission on Environmental Quality (TCEQ) June 27, 2007, effective July 19, 2007. The U.S. Environmental Protection Agency (EPA) approval of this revision is pending.
- State Transportation Conformity Rule, 30 Texas Administrative Code §114.260
- Federal transportation conformity rule
- State SIP and Rule Revisions
The federal conformity regulation ensures transportation plans, programs, and projects in nonattainment and maintenance areas do not create new violations of the national air quality standards, do not increase the frequency or severity of violations, and do not delay timely attainment of the standards.
Section 176(c) of the Federal Clean Air Act Amendments of 1990 required each state to submit a conformity SIP revision no later than November 25, 1994. The original rule was published by the EPA November 24, 1993. The original Texas SIP revision was adopted by the Texas Natural Resources Conservation Commission (now called TCEQ) October 19, 1994, and approved by EPA November 8, 1995.
State SIP and Rule Revisions
- 2007 revision to the state rule (EPA approval is pending)
- EPA approval of 2003 and 2005 state revisions effective July 9, 2005
- 2005 Transportation Conformity SIP revision
- 2005 revision to the state rule
- 2003 Transportation Conformity SIP revision
- 2003 state rule revision
- 1998 Transportation Conformity SIP revision
- 1998 state rule revision
- 1994 Transportation Conformity SIP revision
- 1994 state rule revision
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