Approval and Promulgation of Implementation Plans; Texas; Attainment Demonstration for the Houston-Galveston-Brazoria Ozone Nonattainment Area

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing approval of elements of a State Implementation Plan (SIP) revision for the Houston- Galveston-Brazoria 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS) nonattainment area (HGB area). Specifically, EPA is proposing approval of the attainment demonstration, a reasonably available control measures (RACM) analysis, the contingency measures plan in the event of failure to attain the NAAQS by the applicable attainment date, and Motor Vehicle Emissions Budgets (MVEBs) for 2017, which is the attainment year for the area. EPA is also notifying the public of the status of EPA's adequacy determination for these MVEBs for the HGB area.