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SIP Hot Topics

Hot topics related to Texas' State Implementation Plan (SIP) for air quality.

(Last updated 9/3/15)

NewExecutive Director's Recommended Redesignation Substitute SIP Revision for the Houston-Galveston-Brazoria (HGB) 1997 Eight-Hour Ozone Standard Nonattainment Area

On September 23, 2015, the commission will consider for proposal the executive director’s recommended Houston-Galveston-Brazoria (HGB) Redesignation Substitute State Implementation Plan (SIP) revision (Non-Rule Project No. 2015-001-SIP-NR). The proposed SIP revision would satisfy the anti-backsliding obligations for the revoked 1997 eight-hour ozone National Ambient Air Quality Standard (NAAQS) and ensure that the substance of the redesignation requirements is met for the HGB area. This redesignation substitute would take the place of a redesignation request and maintenance plan, which the United States Environmental Protection Agency (EPA) normally requires under a standard that has not been revoked.

For additional information, please visit the HGB: Latest Ozone Planning Activities Web page.

NewExecutive Director's Recommended Redesignation Substitute SIP Revision for the Dallas-Fort Worth (DFW) One-Hour and 1997 Eight-Hour Ozone Standard Nonattainment Area

On September 23, 2015, the commission will consider for proposal the executive director’s recommended Dallas-Fort Worth (DFW) Redesignation Substitute State Implementation Plan (SIP) revision (Non-Rule Project No. 2015-002-SIP-NR). The proposed SIP revision would satisfy the anti-backsliding obligations for the revoked one-hour and revoked 1997 eight-hour ozone National Ambient Air Quality Standards and ensure that the substance of the redesignation requirements is met for the DFW area. This redesignation substitute would take the place of a redesignation request and maintenance plan, which the United States Environmental Protection Agency normally requires under a standard that has not been revoked.

For additional information, please visit the DFW: Latest Ozone Planning Activities Web page.

Redesignation Substitute Report for the Houston-Galveston-Brazoria (HGB) 1997 Eight-Hour Ozone Standard Nonattainment Area

On August 18 2015, the TCEQ submitted the Redesignation Substitute Report for the HGB 1997 Eight-Hour Ozone Standard Nonattainment Area to the United States Environmental Protection Agency (EPA). This report fulfills the EPA’s redesignation substitute requirements in its Implementation of the 2008 National Ambient Air Quality Standards for Ozone: State Implementation Plan Requirements; Proposed Rule (78 FR 34178) to lift anti-backsliding obligations for the revoked 1997 eight-hour ozone National Ambient Air Quality Standard by ensuring that specific redesignation requirements are met for the HGB area under the revoked standard.

For additional information, please visit the HGB: Latest Ozone Planning Activities Web page.

Redesignation Substitute Report for the Dallas-Fort Worth (DFW) One-Hour and 1997 Eight-Hour Ozone Standard Nonattainment Area

On August 18, 2015, the TCEQ submitted the Redesignation Substitute Report for the DFW One-Hour and 1997 Eight-Hour Ozone Standard Nonattainment Area to the United States Environmental Protection Agency (EPA). This report fulfills the EPA’s redesignation substitute requirements in its Implementation of the 2008 National Ambient Air Quality Standards for Ozone: State Implementation Plan Requirements; Proposed Rule (78 FR 34178) to lift anti-backsliding obligations for the revoked one-hour and revoked 1997 eight-hour ozone National Ambient Air Quality Standards by ensuring that specific redesignation requirements are met for the DFW area under the revoked standards.

For additional information, please visit the DFW: Latest Ozone Planning Activities Web page.

HGB Area Redesignation Substitute SIP Revision for the One-Hour Ozone NAAQS

On July 1, 2015, the commission adopted the HGB Redesignation Substitute SIP Revision for the One-Hour Ozone NAAQS (Non-Rule Project No. 2014-011-SIP-NR). The SIP revision satifies the anti-backsliding obligations for the revoked one-hour ozone NAAQS and ensures that the substance of the redesignation requirements is met for the HGB area. This redesignation substitute takes the place of a redesignation request and maintenance plan, which the EPA would require for a standard that has not been revoked.

For additional information, please visit the HGB: Latest Ozone Planning Activities Web page.

Dallas-Fort Worth (DFW) Attainment Demonstration and Reasonable Further Progress SIP Revisions for the 2008 Eight-Hour Ozone National Ambient Air Quality Standard (NAAQS)

On June 3, 2015, the commission adopted two revisions to the Texas State Implementation Plan (SIP) for the DFW nonattainment area for the 2008 eight-hour ozone standard: the DFW Attainment Demonstration (AD) SIP Revision for the 2008 Eight-Hour Ozone Standard (Non-Rule Project No. 2013-015-SIP-NR) and the DFW Reasonable Further Progress (RFP) SIP Revision for the 2008 Eight-Hour Ozone Standard (Non-Rule Project No. 2013-014-SIP-NR). The AD SIP revision incorporates revisions to 30 Texas Administrative Code Chapters 101, 115, and 117.

For additional information, please visit the Dallas-Fort Worth: Latest Ozone Planning Activities Web page.

Proposed Infrastructure and Transport SIP Revision for the 2012 Primary Annual Fine Particulate Matter (PM2.5) NAAQS

On May 13, 2015, the commission approved proposal of the Federal Clean Air Act (FCAA), Section 110(a)(1) and (2) Infrastructure and Transport SIP Revision for the 2012 primary annual PM2.5 NAAQS (Project No. 2014-029-SIP-NR). The proposed SIP revision would outline the requirements of FCAA, Section 110(a)(2)(A) through (M), and the Texas provisions supporting the requirements for the 2012 PM2.5 NAAQS. These requirements include basic program elements such as enforceable emission limitations and control measures, air quality monitoring and modeling, a permitting program, adequate funding and personnel, authority under state law to carry out the plan, emissions reporting, emergency powers, public participation, and fee collection. This proposed revision would also include a technical demonstration to support the determination that Texas meets the interstate transport requirements of Section 110(a)(2)(D)(i)(I).

A public hearing will be held on the proposed SIP revision in Austin on June 16, 2015 at 2:00 p.m. in Building E, Room 201S, at the commission's central office located at 12100 Park 35 Circle. The public comment period is open from May 15, 2015 through June 22, 2015.

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

Request for Determination of Attainment of the 1997 Eight-Hour Ozone Standard for the Houston-Galveston-Brazoria (HGB) and Dallas-Fort Worth (DFW) Areas and Request for a One-Year Extension of the HGB 2008 Eight-Hour Ozone Standard Attainment Date

In a letter dated February 27, 2015, the TCEQ requested that the United States Environmental Protection Agency (EPA) issue a determination of attainment, also known as a clean data determination, for the 1997 eight-hour ozone NAAQS for the HGB and DFW nonattainment areas. Under 40 Code of Federal Regulations (CFR) §51.918 as well as proposed CFR §51.1118, an EPA determination that an area is attaining the 1997 eight-hour ozone NAAQS suspends certain state planning requirements related to attainment of the standard. This determination of attainment request is based on complete, quality-assured, certified ambient air monitoring data that show the HGB and the DFW areas have monitored attainment of the 1997 eight-hour ozone NAAQS for 2012 through 2014. The HGB area monitored attainment of the standard with an 80 parts per billion (ppb) design value and the DFW area with an 81 ppb design value. The 2014 Annual Data Certification was submitted to the EPA on February 27, 2015.

The TCEQ also requested a one-year attainment date extension to July 20, 2016 for the HGB 2008 eight-hour ozone NAAQS marginal nonattainment area in accordance with Federal Clean Air Act, §181(a)(5). The TCEQ certifies that the state has complied with all marginal requirements and commitments pertaining to the HGB area by submitting a base year emissions inventory SIP revision to the EPA on July 16, 2014. The EPA published direct final approval of this SIP revision in the February 20, 2015 Federal Register (80 FR 9204). The HGB area also meets the monitoring data requirement with a 72 ppb fourth highest daily eight-hour monitored average in the HGB 2008 ozone nonattainment area as measured at the Conroe Relocated monitor (C78/A321) in 2014.

Supplements to the Proposed DFW Attainment Demonstration and Reasonable Further Progress SIP Revisions for the 2008 Eight-Hour Ozone NAAQS and Extension of Comment Period

Supplements to the proposed DFW Attainment Demonstration SIP Revision (Non-Rule Project No. 2013-015-SIP-NR) and the DFW Reasonable Further Progress SIP Revision (Non-Rule Project No. 2013-014-SIP-NR) have been developed to provide additional technical detail that became available after the SIP revisions were approved for proposal by the commission on December 10, 2014. Due to the supplemental technical information, the comment period for the proposed SIP revisions and associated rule revisions is being extended to February 11, 2015. The public hearings will remain as scheduled: in Arlington on January 15, 2015 at 6:30 p.m. in the City of Arlington Council Chamber at the Arlington Municipal Building located at 101 W. Abram Street; and in Austin on January 22, 2015 at 10:00 a.m. in Building E, Room 201S, at the commission's central office located at 12100 Park 35 Circle.

For additional information, please visit the Dallas-Fort Worth: Latest Ozone Planning Activities Web page.

Extension of Comment Period for the Proposed HGB Area Redesignation Substitute SIP Revision for the One-Hour Ozone NAAQS

Due to the supplemental information regarding on-road mobile emissions inventories based on the MOVES2014 emissions model made available by the TCEQ on December 18, 2014, the comment period for the proposed HGB Redesignation Substitute (RS) SIP revision (Non-Rule Project No. 2014-011-SIP-NR) is being extended to January 18, 2015. The public hearing for the proposed SIP revision will remain as scheduled: January 6, 2015 at 2:00 p.m. at the Texas Department of Transportation District Office Auditorium, 7600 Washington Avenue, Houston, TX 77007.

For additional information, please visit the HGB: Latest Ozone Planning Activities Web page.

Supplement to the Proposed Houston-Galveston-Brazoria (HGB) Area Redesignation Substitute SIP Revision for the One-Hour Ozone NAAQS

A supplement to the proposed HGB Redesignation Substitute (RS) SIP revision (Non-Rule Project No. 2014-011-SIP-NR) has been developed for a possible transition at adoption from on-road mobile source emissions inventories developed using the EPA’s Motor Vehicle Emission Simulator (MOVES) 2010b model to those developed using the MOVES2014 model. The supplement provides additional technical detail regarding MOVES2014 model-based on-road mobile source emissions estimates that became available after the HGB RS SIP revision was approved for proposal by the commission on November 19, 2014. The proposed SIP revision was developed using the MOVES2010b on-road model.

If MOVES2014 inventories are used at adoption, it is expected that the final emissions figures and maintenance results would be different than those reported in the proposed SIP revision. Instead of relying solely on the use of MOVES2010b inventories, the TCEQ performed a preliminary analysis based on approximate MOVES2014-based on-road emissions inventories as a supplement to the proposed HGB RS SIP revision for consideration during the public comment period.

For additional information, please visit the HGB: Latest Ozone Planning Activities Web page.

Proposed DFW Attainment Demonstration and Reasonable Further Progress SIP Revisions for the 2008 Eight-Hour Ozone NAAQS

On December 10, 2014, the commission approved proposal of two revisions to the Texas SIP for the DFW nonattainment area for the 2008 eight-hour ozone standard: the DFW Attainment Demonstration (AD) SIP Revision for the 2008 Eight-Hour Ozone NAAQS (Non-Rule Project No. 2013-015-SIP-NR) and the DFW Reasonable Further Progress (RFP) SIP Revision for the 2008 Eight-Hour Ozone NAAQS (Non-Rule Project No. 2013-014-SIP-NR). The proposed AD SIP revision would incorporate proposed revisions to 30 Texas Administrative Code Chapters 101, 115, and 117.

Two public hearings will be held on these proposed SIP revisions: in Arlington on January 15, 2015 at 6:30 p.m. in the City of Arlington Council Chamber at the Arlington Municipal Building located at 101 W. Abram Street; and in Austin on January 22, 2015 at 10:00 a.m. in Building E, Room 201S, at the commission's central office located at 12100 Park 35 Circle. The public comment period is from December 26, 2014 through January 30, 2015.

For additional information, please visit the Dallas-Fort Worth: Latest Ozone Planning Activities Web page.

Proposed HGB Area Redesignation Substitute SIP Revision for the One-Hour Ozone NAAQS

On November 19, 2014, the commission approved proposal of the HGB Redesignation Substitute SIP revision (Non-Rule Project No. 2014-011-SIP-NR). The proposed SIP revision would satisfy the anti-backsliding obligations for the revoked one-hour ozone NAAQS and ensure that the substance of the redesignation requirements is met for the HGB area. This redesignation substitute would take the place of a redesignation request and maintenance plan, which the EPA would require for a standard that has not been revoked.

A public hearing for this SIP revision is scheduled for January 6, 2015 at 2:00 p.m. at the Texas Department of Transportation District Office Auditorium, 7600 Washington Avenue, Houston, TX 77007. The public comment period is from December 5, 2014 through January 18, 2015.

For additional information, please visit the HGB: Latest Ozone Planning Activities Web page.

August 26, 2011 One-Hour Ozone Exceptional Event Technical Support Document Submitted to EPA

On September 30, 2014, the TCEQ submitted a technical support document to the U.S. EPA Region 6 office in Dallas, Texas. This document supports the commission’s conclusion that large wildfires in the Northwestern and Southeastern United States caused an exceedance of the one-hour ozone NAAQS on August 26, 2011 at the Houston East (CAMS 1) monitoring site. Emissions from numerous fires in these two regions transported to the Houston area and caused an exceedance of the one-hour ozone NAAQS that would not otherwise have occurred.

Under current federal rules, the U.S. EPA will now evaluate the submittal and decide whether to concur or not. If the U.S. EPA concurs with Texas’ conclusions then ozone measurements made at the Houston East monitoring site on August 26, 2011 will not be compared to the ozone NAAQS for determinations of compliance or noncompliance with ozone NAAQS.

Emissions Inventory (EI) SIP Revision for the 2008 Eight-Hour Ozone Standard for the HGB and 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 Federal Clean Air Act (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.

2014 Five-Year Regional Haze SIP Revision

On February 26, 2014, the commission adopted the 2014 Five-Year Regional Haze SIP Revision (Project No. 2013-013-SIP-NR). This SIP revision evaluates Texas' progress towards the reasonable progress goal for each Class I area located within the state and in each Class I area outside the state which may be affected by emissions from within the state. The TCEQ projects that Texas will meet the established reasonable progress goals set by the state for 2018 for all Class I areas it affects.

For additional information and the complete SIP package, including appendices, please visit the SIP Revision: Regional Haze Web page.

Inspection and Maintenance (I/M) Rulemaking and SIP Revision

On February 12, 2014, the commission adopted amendments to Sections 114.1, 114.2, 114.21,114.50, 114.53, 114.82, 114.83, 114.84, and 114.87 of 30 TAC Chapter 114, Control of Air Pollution from Motor Vehicles (Rule Project No. 2013-035-114-AI) and the corresponding SIP revision (Non-rule Project No. 2013-041-SIP-NR). The rulemaking and corresponding SIP revision implement House Bill 2305 from the 83rd Texas Legislature, 2013, Regular Session, relating to replacing the dual windshield sticker system for vehicle inspection and registration with a single windshield sticker system and modifying the method used to collect the state portion of the vehicle safety and emissions inspection fee.

For additional information and the complete rule and SIP packages, please visit the Vehicle Inspection and Maintenance (I/M) Program Web page.

DRAFT SIP Timeline - Estimated Dates and Activities 2014 through 2016

This draft timeline reflects the ongoing SIP revision activities that will continue through 2016. 

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