Transportation Conformity Rule Amendments: Transition to the Control Strategy Period

This action proposes to permanently align the timing of certain transportation conformity consequences with the imposition of Clean Air Act highway sanctions. For ozone nonattainment areas with an incomplete 15% emissions-reduction state implementation plan with a protective finding; incomplete ozone attainment/3% rate-of-progress plan; or finding of failure to submit an ozone attainment/3% rate-of- progress plan, and areas whose control strategy implementation plan for ozone, carbon monoxide, particulate matter, or nitrogen dioxide is disapproved with a protective finding, the conformity status of the transportation plan and program would not lapse as a result of such failure until highway sanctions for such failure are effective under other Clean Air Act sections.

Agency Contact: Kathryn Sargeant, Emission Control Strategies Branch, Emission Planning and Strategies Division, U.S. Environmental Protection Agency, 2565 Plymouth Road, Ann Arbor, MI 48105. (313) 668-4441.