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HGB: Latest Ozone Planning Activities

Latest events and activities related to the Houston-Galveston-Brazoria (HGB) area’s compliance with the National Ambient Air Quality Standards (NAAQS) for ground-level ozone.

Last updated: 12/15/2016

HGB Attainment Demonstration SIP Revision for the 2008 Eight-Hour Ozone NAAQS

On December 15, 2016, the commission adopted the HGB Attainment Demonstration (AD) State Implementation Plan (SIP) Revision for the 2008 Eight-Hour Ozone Standard Nonattainment Area (Project No. 2016-016-SIP-NR). The AD SIP revision meets Federal Clean Air Act (FCAA) requirements and includes a photochemical modeling analysis, a weight of evidence analysis, a reasonably available control technology analysis, a reasonably available control measures analysis, a motor vehicle emissions budget for 2017, and a contingency plan. The AD SIP revision incorporates revisions to 30 Texas Administrative Code Chapter 115.

HGB Reasonable Further Progress SIP Revision for the 2008 Eight-Hour Ozone NAAQS

On December 15, 2016, the commission adopted the HGB Reasonable Further Progress (RFP) SIP Revision for the 2008 Eight-Hour Ozone Standard Nonattainment Area (Project No. 2016-017-SIP-NR). To meet FCAA requirements, the SIP revision includes an analysis of reasonable further progress toward attainment of the 2008 eight-hour ozone standard, demonstrating a 15% emissions reduction in ozone precursors from the 2011 base year through the 2017 attainment year, a 3% emissions reduction for contingency in 2018, and updated RFP motor vehicle emissions budgets.

Emissions Inventory (EI) SIP Revision for the 2008 Eight-Hour Ozone Standard for the HGB and Dallas-Fort Worth (DFW) Areas

On July 2, 2014, the commission adopted the EI SIP revision for the 2008 Eight-Hour Ozone Standard (Non-Rule Project No. 2013-016-SIP-NR). This SIP revision satisfies the FCAA, §172 and §182 requirements for the HGB and DFW nonattainment areas under the 2008 eight-hour ozone standard. The SIP revision includes 2011 emissions inventories for ozone precursors (volatile organic compounds and nitrogen oxides) from point, area, on-road mobile, non-road mobile, and biogenic emissions source categories as the base year emissions inventories for the HGB and DFW areas.

For additional information, please visit the Air Pollution from Ozone Web page.