Texas SIP Revisions

Links to State Implementation Plan (SIP) Revisions, other air quality plans, and agreements to improve air quality.

SIP files prior to 2020 on this page are hosted by the Texas Records and Information Locator (TRAIL) web archive . If you need assistance with a file, please contact siprules@tceq.texas.gov.

This page provides quick access to complete texts of Texas air quality plans. Click the title of the plan for more details (where available). All air quality plans, including those that have since been superseded, withdrawn, or deleted, are included here for reference. Information is organized chronologically into the following categories:

Proposed SIP Revisions and Public Hearing Information
Adopted SIP Revisions
Early Action Compact (EAC), Ozone (O3) Flex Plans, and EAC Area SIPs
Agreements (MOAs, MOUs, Agreed Orders)
Redesignation Substitutes
Other Air Quality Plans
How to Read These Tables

Proposed SIP Revisions and Public Hearing Information

The Texas Commission on Environmental Quality (commission) offers public hearings to receive testimony regarding proposed SIP revisions. The hearings are structured for the receipt of oral or written comments by interested persons. Open discussion is not permitted during the hearings; however, commission staff members are available to discuss the proposal 30 minutes prior to each hearing.

Persons who have special communication or other accommodation needs who are planning to attend a hearing should contact Jamie Zech, Air Quality Division at (512) 239-3935 or 1-800-RELAY-TX (TDD). Requests should be made as far in advance as possible.

Written comments on proposed SIP revisions may be submitted through the eComments system during the public comment period.

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Proposal Date	SIP Revision Title / Rule Log	Public Hearing Information	Close of Comment Period
4/17/2025	House Bill (HB) 3297 and Senate Bill (SB) 2102 Implementation Inspection and Maintenance (I/M) State Implementation Plan (SIP) Revision (Non-Rule Project No. 2025-013-SIP-NR) Plain Language Summary - English Plain Language Summary - Spanish Public Involvement Plan	Virtual Public Hearing 5/29/2025 at 2:00 pm Public Hearing Notice - English Public Hearing Notice - Spanish	6/3/2025
4/3/2025	Collin County Lead Second 10-Year Maintenance Plan SIP Revision (Non-Rule Project No. 2024-042-SIP-NR) Plain Language Summary Public Involvement Plan	Virtual Public Hearing 5/9/2025 at 10:30 am Public Hearing Notice	5/12/2025

Adopted SIP Revisions

A SIP revision is made up of a narrative section, which is like a summary report, and typically will consist of various rules and agreements to legally fulfill what is written in the narrative.

Only one SIP exists for each state. For Texas, this document was initially approved in May 1972. Rather than rewriting the entire SIP each time changes are made, parts of the SIP are simply revised as needed.

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Adoption Date	SIP Revision Title / Rule Log Agency Publication No. SFR-122	HGB	DFW	BPA	ELP	NETX	SAN	Other
3/13/2025	Bexar County Moderate Area Attainment Demonstration SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2022-025-SIP-NR)						X
3/13/2025	Bexar County Moderate Area Reasonable Further Progress SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2022-024-SIP-NR)						X
3/13/2025	DFW 2015 Eight-Hour Ozone Moderate Area Attainment Demonstration SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2022-021-SIP-NR)		X
3/13/2025	HGB Moderate Area Attainment Demonstration SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2022-022-SIP-NR)	X
3/13/2025	DFW and HGB 2015 Eight-Hour Ozone Moderate Area Reasonable Further Progress SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2022-023-SIP-NR)	X	X
4/24/2024	Dallas-Fort Worth Severe Area Attainment Demonstration SIP Revision for the 2008 Eight-Hour Ozone NAAQS (2023-107-SIP-NR)		X
4/24/2024	Houston-Galveston-Brazoria Severe Area Attainment Demonstration SIP Revision for the 2008 Eight-Hour Ozone NAAQS (2023-110-SIP-NR)	X
4/24/2024	Dallas-Fort Worth and Houston-Galveston-Brazoria Severe Area Reasonable Further Progress SIP Revision for the 2008 Eight-Hour Ozone NAAQS (2023-108-SIP-NR)	X	X
4/24/2024	Bexar County Moderate Area Reasonably Available Control Technology SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2023-132-SIP-NR)						X
11/29/23	Bexar County Inspection and Maintenance (I/M) SIP Revision (2022-027-SIP-NR)						X
11/16/22	El Paso Emissions Inventory SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2022-010-SIP-NR)				X
10/5/22	Howard County Attainment Demonstration SIP Revision for the 2010 SO₂ NAAQS (2021-010-SIP-NR)							X
10/5/22	Hutchinson County Attainment Demonstration SIP Revision for the 2010 SO₂ NAAQS (2021-011-SIP-NR)							X
10/5/22	Navarro County Attainment Demonstration SIP Revision for the 2010 SO₂ NAAQS (2021-012-SIP-NR)							X
2/23/22	Redesignation Request and Maintenance Plan SIP Revision for the Freestone-Anderson and Titus 2010 SO₂ NAAQS Nonattainment Areas (2021-007-SIP-NR)							X
2/9/22	Rusk-Panola Attainment Demonstration SIP Revision for the 2010 SO₂ NAAQS (2020-057-SIP-NR)							X
6/30/21	2021 Regional Haze SIP Revision (2019-112-SIP-NR)	X	X	X	X	X		(statewide)
9/25/20	El Paso One-Hour Ozone Redesignation Request and Maintenance Plan SIP Withdrawal (2020-040-SIP-NR)				X
9/25/20	BPA One-Hour Ozone Redesignation Request and Maintenance Plan SIP Withdrawal (2020-039-SIP-NR)			X
7/1/20	Bexar County 2015 Eight-Hour Ozone Nonattainment Area FCAA, §179B Demonstration SIP Revision (2019-106-SIP-NR)						X
6/10/20	Emissions Inventory SIP Revision for the 2015 Eight-Hour Ozone NAAQS (2019-111-SIP-NR)	X	X				X
3/4/20	DFW and HGB Serious Classification RFP SIP Revision for the 2008 Eight-Hour Ozone NAAQS (2019-079-SIP-NR)	X	X
3/4/20	DFW Serious Classification AD SIP Revision for the 2008 Eight-Hour Ozone NAAQS (2019-078-SIP-NR)		X
3/4/20	HGB Serious Classification AD SIP Revision for the 2008 Eight-Hour Ozone NAAQS (2019-077-SIP-NR)	X
4/24/19	El Paso Redesignation Request and Maintenance Plan SIP Revision for the One-Hour Ozone NAAQS (2018-029-SIP-NR)				X
3/27/19	DFW Redesignation Request and Maintenance Plan SIP Revision for the One-Hour and 1997 Eight-Hour Ozone NAAQS (2018-028-SIP-NR)		X
1/30/19	BPA One-Hour Ozone Redesignation Request and Maintenance Plan and 1997 Eight-Hour Ozone Second 10-Year Maintenance Plan SIP Revision (2018-027-SIP-NR)			X
12/12/18	HGB One-Hour and 1997 Eight-Hour Ozone Redesignation Request and Maintenance Plan SIP Revision (2018-026-SIP-NR)	X
10/17/18	Anti-Tampering and EAC LIRAP SIP Revision (2018-006-SIP-NR)							X
8/8/18	2015 Ozone NAAQS Infrastructure SIP Revision (2017-040-SIP-NR)	X	X	X	X	X		(statewide)
8/8/18	2015 Ozone NAAQS Transport SIP Revision (2017-039-SIP-NR)	X	X	X	X	X		(statewide)
8/8/18	DFW 2008 Eight-Hour Ozone RACT Update SIP Revision (2017-001-SIP-NR)		X
12/15/16	HGB 2008 Eight-Hour Ozone Moderate AD SIP Revision (2016-016-SIP-NR)	X
12/15/16	HGB 2008 Eight-Hour Ozone Moderate RFP SIP Revision (2016-017-SIP-NR)	X
10/19/16	Collin County Lead Redesignation Request and Maintenance Plan SIP Revision (2016-003-SIP-NR)		X
9/7/16	El Paso CO Limited Maintenance Plan SIP Revision (2015-015-SIP-NR)				X
7/6/16	DFW 2008 Eight-Hour Ozone NAAQS Moderate AD SIP for the 2017 Attainment Year (2015-014-SIP-NR)		X
11/4/15	2012 PM_2.5 Infrastructure and Transport SIP (2014-029-SIP-NR)	X	X	X	X	X		(statewide)
6/3/15	DFW 2008 Eight-Hour Ozone NAAQS Moderate AD SIP (2013-015-SIP-NR)		X
6/3/15	DFW 2008 Eight-Hour Ozone NAAQS Moderate RFP SIP (2013-014-SIP-NR)		X
7/2/14	2008 Ozone NAAQS Emissions Inventory (EI) SIP (2013-016-SIP-NR)	X	X
2/26/14	2014 Five-Year Regional Haze SIP (2013-013-SIP-NR)	X	X	X	X	X		(statewide)
2/12/14	Inspection Maintenance (I/M) SIP (2013-041-SIP-NR)	X	X		X			X
10/9/13	Stage II Vapor Recovery Decommissioning SIP (2013-002-SIP-NR)	X	X	X	X
4/23/13	HGB MVEB Update SIP (2012-002-SIP-NR)	X
4/23/13	2010 SO₂ Infrastructure and Transport SIP (2012-022-SIP-NR)	X	X	X	X	X		(statewide)
12/5/12	2008 Ozone Infrastructure and Transport SIP (2012-004-SIP-NR)	X	X	X	X	X		(statewide)
11/14/12	2010 NO₂ Infrastructure and Transport SIP (2012-016-SIP-NR)	X	X	X	X	X		(statewide)
11/14/12	BPA MVEB Update SIP (2012-005-SIP-NR)			X
8/8/12	Collin County Lead AD SIP (2011-001-SIP-NR)		X
1/25/12	El Paso PM₁₀ Revised MOA SIP (2011-010-SIP-NR)				X
12/7/11	DFW Eight-Hour Ozone Serious AD SIP (2010-022-SIP-NR)		X
12/7/11	DFW Eight-Hour Ozone Serious RFP SIP (2010-023-SIP-NR)		X
12/7/11	HGB RACT Analysis Update SIP (2010-028-SIP-NR)	X
10/5/11	Lead Infrastructure Demonstration SIP (2011-016-SIP-NR)	X	X	X	X	X		(statewide)
10/5/11	General Conformity SIP Revision (2011-002-SIP-NR)	X	X	X	X
8/17/11	Lead Transport Plan SIP (2011-005-SIP-NR)	X	X	X	X	X		(statewide)
11/18/10	Inspection and Maintenance (I/M) SIP (2009-035-SIP-NR)	X	X		X
8/25/10	DFW ESL to TCM SIP (2009-026-SIP-NR)		X
7/28/10	VIC Contingency Plan Revision (2009-033-SIP-NR)							X
3/10/10	HGB 1997 Eight-Hour Ozone Severe AD SIP (2009-017-SIP-NR)	X
3/10/10	HGB 1997 Eight-Hour Ozone Severe RFP SIP (2009-018-SIP-NR)	X
3/10/10	DFW RACT, Rule, and Contingency SIP (2009-021-SIP-NR)		X
2/10/10	CAIR SIP (2007-051-SIP-NR)	X	X	X	X	X		(statewide)
2/10/10	Texas Portable Fuel Container SIP (2009-024-SIP-NR)	X	X	X	X	X		X
8/26/09	Collin County 2nd 10-Year Lead Maintenance Plan SIP (2009-0065-SIP-NR)		X
2/25/09	Regional Haze SIP (2007-016-SIP-NR)	X	X	X	X	X		(statewide)
12/10/08	BPA 1997 Eight-Hour Ozone Redesignation Request and Maintenance Plan SIP (2008-006-SIP-NR)			X
12/10/08	DFW 1997 Eight-Hour Ozone AD (DERC) SIP (2008-016-SIP-NR)		X
11/5/08	DFW 1997 Eight-Hour Ozone AD (Contingency Measures Plan) SIP (2008-016A-SIP-NR)		X
4/16/08	Ozone and PM_2.5 Transport SIP (2007-057-SIP-NR)	X	X	X	X	X		(statewide)
1/30/08	El Paso CO Maintenance Plan SIP (2007-014-SIP-NR)				X
6/27/07	Stage II Vapor Recovery Program 30 TAC 115 Amendment SIP (2006-049-115-EN)	X	X	X	X
6/27/07	2007 Transportation Conformity SIP (2006-046-114-EN)	X	X	X	X
6/27/07	Transportation Air Quality Cleanup SIP (2006-050-114-EN)	X	X	X	X
5/23/07	DFW 1997 Eight-Hour Ozone Moderate AD SIP (2006-013-SIP-NR)		X
5/23/07	DFW 1997 Eight-Hour Ozone Moderate RFP SIP (2006-031-SIP-NR)		X
5/23/07	HGB 1997 Eight-Hour Ozone AD SIP (2006-027-SIP-NR)	X
5/23/07	HGB 1997 Eight-Hour Ozone Moderate RFP SIP (2006-030-SIP)	X
3/7/07	VIC Eight-Hour Ozone Maintenance Plan SIP (2006-023-SIP-NR)							X
7/12/06	Clean Air Interstate Rule (2005-048-SIP-NR)	X	X	X	X	X		(statewide)
7/12/06	Clean Air Mercury Rule (2005-049-SIP-NR)	X	X	X	X	X		(statewide)
1/11/06	El Paso CO Redesignation Request and Maintenance Plan SIP (2005-028-SIP-NR)				X
1/11/06	El Paso 1997 Eight-Hour Ozone Maintenance Plan SIP (2005-027-SIP-NR)				X
10/26/05	SIP Revision: Inspection / Maintenance (I/M) SIP (2005-026-114-EN)				X
9/28/05	BPA 1997 Eight-Hour Ozone AD SIP (2005-020-SIP-NR)			X
4/27/05	DFW 5% IOP SIP (2004-096-SIP-AI)		X
4/27/05	2005 Transportation Conformity SIP (2005-002-114-NR)	X	X	X	X
3/23/05	Stage II Vapor Recovery Program Technology Updates SIP (2005-001-SIP-AI)	X	X	X	X	X
12/15/04	BPA Agreed Orders SIP Revision (2004-084-SIP-NR)			X
12/1/04	HGB Mid-Course Review SIP (2004-042-SIP-NR)	X
11/17/04	Austin EAC SIP (2004-086-SIP-NR)							X
11/17/04	San Antonio EAC SIP (2004-085-SIP-NR)							X
11/17/04	North East Texas EAC SIP (2004-077-SIP-NR)					X
Date	SIP Revision Title / Rule Log	HGB	DFW	BPA	ELP	NETX		Other
10/27/04	HGB Rate-of-Progress SIP (2004-049b-SIP-NR)	X
10/27/04	BPA Ozone ROP SIP (2004-049a-SIP-NR)			X
10/27/04	BPA Ozone AD SIP (2004-053-SIP-NR)			X
9/15/04	I/M SIP: Chambers, Liberty, and Waller Counties Program Removal (2004-035-114-AI)	X
1/14/04	NCTCOG MOA SIP (2003-0994-SIP)		X
10/8/03	I/M SIP: Chambers, Liberty, and Waller Counties Program Delay (2003-034-114-AI)	X	X	X	X	X		X
4/30/03	2003 Transportation Conformity SIP (2003-008-114-SIP-AI)	X	X	X	X
9/8/03	Unofficial Complete HGB SIP	X
3/18/03	Unofficial Complete DFW SIP		X
3/5/03	2003 DFW One-Hour Ozone Attainment SIP (2003-008-114-SIP-AI)		X
2/5/03	VIC Limited Maintenance SIP (2002-047-SIP-AI)							X
12/13/02	2002 HGB One-Hour Ozone AD Follow-Up SIP (December) (2002-046a-SIP-AI)	X
12/4/02	I/M SIP: El Paso OBD Testing Contingency Measure (2002-068-114-AI-SIP)	X	X		X
11/6/02	Stage II Vapor Recovery Program Testing Requirements SIP (2002-012-115-AI-SIP)	X	X	X	X
9/25/02	2002 HGB One-Hour Ozone AD Follow-Up SIP (September) (Speed Limit/VMEP) (2002-046a-SIP-AI)	X
6/13/02	Visibility Protection SIP Phase I							X
3/13/02	NE Texas Ozone SIP (2001-026-SIP-AI)					X
10/24/01	I/M SIP: DFW, Houston-Galveston, and El Paso Nonattainment Areas Revision (2001-035-114-AI)	X	X		X
Date	SIP Revision Title / Rule Log	HGB	DFW	BPA	ELP	NETX		Other
9/26/01	2001 HGB Follow-Up One-Hour Ozone AD and ROP SIP (2001-007-SIP-AI)	X
8/22/01	2001 DFW One-Hour Ozone AD SIP (2001-025-SIP-AI)		X
12/6/00	2000 HGB One-Hour Ozone AD and Post-1999 ROP SIP (2000-011-SIP-AI)	X
12/6/00	I/M SIP: HGB Nonattainment Area Program Extension (2000-011-SIP-AI)	X
5/3/00	Transportation Control Measures Vehicle Miles Traveled SIP (1999-068-SIP-AI)	X
4/19/00	NE Texas Flexible Attainment Region Agreed Order SIP (1999-022-SIP-AI) (1999-055-SIP-AI)					X
4/19/00	I/M SIP: New Testing Requirements in All Program Areas (1999-055C-SIP-AI)	X	X	X
4/19/00	2000 DFW One-Hour Ozone AD SIP (1999-055-SIP-AI)		X
4/19/00	2000 HGB One-Hour Ozone AD SIP (1999-055-SIP-AI)	X
4/19/00	BPA One-Hour Ozone Attainment Demonstration Phase II SIP (1999-056-SIP-AI)			X
4/19/00	Regional SIP (1999-056-SIP-AI)	X	X	X	X	X		X
4/5/00	Gasoline (RVP) SIP (2000-002-SIP-AI)	X	X	X		X		X
Date	SIP Revision Title / Rule Log	HGB	DFW	BPA	ELP	NETX		Other
10/15/99	DFW 9% Tech Rev SIP (2000-002-SIP-AI)		X
10/27/99	HGB Attainment SIP Part II (1999-021-SIP-AI)	X
10/27/99	BPA One-Hour Ozone Attainment Demonstration Phase I SIP (1999-018-SIP-AI)			X
7/28/99	Collin Lead SIP (1998-023-SIP-AI)							X
6/30/99	Gasoline SIP (1998-058-SIP-AI)	X	X	X		X		X
5/12/99	NE Texas Flexible Attainment Region SIP (1996-175-SIP-AI)					X
2/24/99	1999 DFW One-Hour Ozone AD SIP (1998-046-SIP-AI)		X
11/18/98	1998 Transportation Conformity SIP (1998-003-114-AI)	X	X	X	X			X
7/29/98	Texas Clean Fleet: Federal Clean Fleet Fuel Program Substitution SIP (1997-139-114-AI)	X	X		X
6/3/98	I/M SIP: Revised Testing Procedures in All Program Areas (1998-004-SIP-AI)	X	X	X
5/6/98	1996 HGB One-Hour Ozone AD and Post-1996 ROP SIP (1997-184-SIP-AI)	X
8/6/97	Vehicle Miles Traveled Offset Update SIP (1997-184-SIP-AI)	X
5/14/97	Harris County SO₂ Agreed Order Modification SIP (1996-181-SIP-AI)	X
5/14/97	I/M SIP: Sticker Based Enforcement (1997-119-SIP-AI)	X	X	X
12/4/96	Texas Instruments SIP (1996-130-SIP-AI)		X
7/24/96	Super SIP (1996-109-SIP-AI, 1996-110-SIP-AI, 1996-111-SIP-AI, 1996-112-SIP-AI, 1996-113-SIP-AI)	X	X	X	X			X
Date	SIP Revision Title / Rule Log	HGB	DFW	BPA	ELP	NETX		Other
7/24/96	Texas Clean Fleet: Federal Clean Fuel Fleet Program Revised Substitution SIP (Withdrawn) (1995-153-114-AI)	X	X		X
5/29/96	I/M SIP: DFW, Houston-Galveston, and El Paso Nonattainment Areas Program Implementation (1996-104-114-AI)	X	X		X
3/20/96	Bell Helicopter SIP (1995-166-SIP-AI)		X
12/13/95	Post-1996 Rate-of-Progress for Beaumont/Port Arthur and Houston/Galveston Ozone Nonattainment Areas SIP/HGB (1995-156-SIP-AI)	X		X
9/13/95	El Paso CO Attainment Demonstration SIP (1995-106-SIP-AI)				X
8/23/95	Milam County SO₂ SIP (1995-003-SIP-AI)							X
11/16/94	General Conformity SIP	X	X	X	X
11/9/94	Post-1996 Rate-of-Progress for Beaumont/Port Arthur and Houston/Galveston SIP	X		X
10/12/94	Vehicle Miles Traveled Offset Supplement SIP	X
10/19/94	1994 Transportation Conformity SIP	X	X	X	X			X
9/21/94	1994 DFW One-Hour Ozone ROP SIP		X
9/21/94	818 El Paso SIP				X
8/31/94	I/M SIP: Enhancements to Existing Programs	X	X	X	X
7/27/94	Victoria Redesignation SIP							X
7/94	Texas Clean Fleet: Texas Alternative Fuel Fleet Program Implementation SIP (Withdrawn)	X		X	X
Date	SIP Revision Title / Rule Log	HGB	DFW	BPA	ELP	NETX		Other
6/94	Harris County SO₂ SIP	X
5/13/94	15% ROP SIP (Phase II)	X	X	X	X
2/16/94	I/M SIP: El Paso and Houston New Testing Requirements	X			X
11/10/93	Stage II Vapor Recovery Program Implementation Update SIP	X	X	X	X
11/10/93	15% ROP SIP (Phase I)	X	X	X	X
10/93	Post-1990 CO SIP for Moderate Area - El Paso				X
10/27/93	Vehicle Miles Traveled Offset SIP	X
6/18/93	Collin County Lead SIP		X
6/18/93	Lockheed Corporation SIP		X
6/18/93	Shell Corporation Site Specific SIP	X
4/93	El Paso Electrical Products SIP				X
11/6/92	Texas Clean Fleet: Federal Clean Fuel Fleet Program Opt-Out SIP	X		X	X
11/92	Small Business Stationary Source SIP	X	X	X	X	X		X
10/92	Vehicle Miles Traveled Offset Commitment SIP	X
10/92	Stage II Vapor Recovery Program SIP	X	X	X	X
9/92	El Paso CO 30 TAC 114 Amendment SIP				X
8/13/92	NO_X RACT SIP	X		X
7/23/92	I/M SIP: Requirements for New and Existing Program Areas	X	X	X	X
6/30/92	Employer Trip Reduction SIP	X
11/91	El Paso PM₁₀ SIP				X
5/89	El Paso PM₁₀ Interim SIP				X
Spring 1989	111(d) Plan for Sulfur	X	X	X				X
5/88	PM₁₀ SIP (Group II/III Areas)	X	X		X			X
Date	SIP Revision Title / Rule Log	HGB	DFW	BPA	ELP	NETX		Other
12/18/87	Dallas/Tarrant Post-1982 Ozone SIP		X
Summer 87	Class I Areas Visibility SIP (Phase I)							X
8/86	El Paso CO Commitment to Implement I/M Program SIP				X
8/85	Post-1982 El Paso CO SIP				X
8/85	Dallas / El Paso / Tarrant Post-1982 Ozone SIP		X		X
11/84	Harris Inspection/Maintenance SIP	X
Summer 84	Dallas Lead SIP		X
Spring 84	Dallas RSR Corporation Lead SIP		X
12/3/82	Harris Ozone SIP	X
7/11/80	Total Suspended Particulates SIP		X		X			X
3/21/80	Lead SIP	X	X	X	X	X		X
3/30/79	Ozone, PM, CO SIP	X	X	X	X			X
8/15/76	1976 Complete SIP	X	X	X	X	X		X
4/15/75	1975 Complete SIP	X	X	X	X	X		X
2/15/74	1974 Complete SIP	X	X	X	X	X		X
4/15/73	1973 Complete SIP	X	X	X	X	X		X
1/26/72	1972 Complete SIP	X	X	X	X	X		X

Early Action Compact (EAC) SIPs and Ozone (O3) Flex Plans

This section contains links to downloadable Early Action Compact (EAC) SIPs and O3 Flex plans. Click here for more information about Early Action Compact plans.

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Date	Title	ARR	SAN	NETX	CC	Other
6/18/08	Austin Eight-Hour O3 Flex Plan (2007-020-MIS-NR)	X
6/13/07	Corpus Christi Eight-Hour O3 Flex Plan (2007-008-MIS-NR)				X
11/17/04	Austin Area 8-Hour Ozone Early Action Compact SIP Revision (2004-086-SIP-NR)	X
11/17/04	San Antonio Area 8-Hour Ozone Early Action Compact SIP Revision (2004-085-SIP-NR)		X
11/17/04	Northeast Texas Area 8-Hour Ozone Early Action Compact SIP Revision (2004-077-SIP-NR)			X
3/29/04	Austin/Round Rock MSA Clean Air Action Plan for the Early Action Compact	X
3/31/04	Proposed AACOG Attainment Demonstration for the San Antonio EAC Region		X
3/31/04	Clean Air Action Plan for Northeast Texas			X
12/18/02	Austin-San Marcos MSA Early Action Compact	X
9/17/02	Corpus Christi O3 Flex Plan				X
3/28/02	O3 Flex Plan for the Austin/San Marcos MSA	X

Agreements (MOAs, MOUs, AOs)

This section lists agreements entered into by the TCEQ that pertains to the State Implementation Plan. Agreements include Memorandums of Agreement (MOAs), Memorandums of Understanding (MOUs), and Agreed Orders (AOs).

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Date	Agreement Title	HGB	DFW	BPA	ELP	NETX	Other
8/8/12	Agreed Order with Exide Technologies: Collin County 2008 Lead NAAQS Attainment Demonstration (2011-024-MIS-NR)		X
1/25/12	Revised MOA with City of El Paso (2011-026-MIS-NR)				X
8/26/09	Agreed Order with Exide Technologies: Collin County Lead Maintenance Plan (2009-0071-MIS)		X
8/05	Austin EAC Idling Restriction MOA						X
1/14/04	North Central Texas COG MOA		X
12/15/04	Agreed Order with ISP Elastomers (2004-078-SIP-NR)			X
12/15/04	Agreed Order with ExxonMobil Oil Corporation (2004-079-SIP-NR)			X
12/15/04	Agreed Order with Huntsman Petrochemical Corporation, Port Arthur (2004-080-SIP-NR)			X
12/15/04	Agreed Order with Mobil Chemical Company, Division of ExxonMobil Oil Corporation Part I (2004-081-SIP-NR)			X
12/15/04	Agreed Order with Motiva Enterprises, LLC (2004-082-SIP-NR)			X
12/15/04	Agreed Order with Premcor Refining Group, Inc. (2004-083-SIP-NR)			X
12/15/04	Agreed Order with Huntsman Petrochemical Corporation, Port Neches (2004-090-SIP-NR)			X
12/15/04	Agreed Order with Mobil Chemical Company, Division of ExxonMobil Oil Corporation Part II (2004-081b-SIP-NR)			X
5/02	HGB TxDOT Ferries MOU	X
3/12/02	2002 Agreed Order with Eastman Chemical Company (2001-0880-RUL)					X
3/12/02	TXU Generation Company LP AO (2001-0879-RUL)					X
3/12/02	Southwestern Electric Power AO (2001-0878-RUL)					X
10/9/01	City of El Paso MOA				X
6/01	HGB Tugboat/Towing Vessel MOU	X
5/23/01	City of Dallas GSE MOA		X
5/23/01	DFW Airport GSE MOA		X
5/23/01	City of Fort Worth GSE MOA		X
5/23/01	American Airlines GSE AO (2000-1149-SIP)		X
5/23/01	Delta Airlines GSE AO (2001-0221-AIR)		X
5/23/01	Southwest–Love Field GSE AO (2001-0222-AIR)		X
3/21/01	Southwest-Hobby GSE AO (2000-0827-SIP)	X
12/4/00	HGB Railroad MOU	X
10/18/00	Houston Airport System GSE MOA	X
10/18/00	Continental GSE AO (2000-0826-SIP)	X
4/19/00	2000 Agreed Order with Eastman Chemical Company (2000-0033-AIR)					X
4/19/00	Alcoa Inc. AO (2000-0032-AIR)						X
7/28/99	GNB Technologies Inc. AO (99-0351-SIP)		X
7/28/99	GNB Inc. AO 92-09(k), 93-12, and 93-10		X
6/94	Harris County SO₂ Agreed Orders	X

Redesignation Substitutes

This section lists Redesignation Substitutes that have been developed by the TCEQ for nonattainment areas that have attained revoked standards.

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Date*	Title	HGB	DFW	BPA	ELP	NETX	Other
7/22/14 8/18/15	HGB One-Hour and 1997 Eight-Hour Ozone Redesignation Substitutes	X
8/18/15	DFW One-Hour and 1997 Eight-Hour Ozone Redesignation Substitute		X

*Date of report submittal to EPA

Other Air Quality Plans

This section lists other air quality-related plans which may not be directly related to Texas’ SIP, but which may be of general interest.

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2006 PM_2.5 Infrastructure and Transport SIP (November 23, 2009)
Ozone and PM_2.5 Infrastructure SIP (April 4, 2008)
El Paso Natural Events Action Plan (NEAP) (February 27, 2007)
HGB TCM Substitution (April 15, 2005)
DFW TCM Substitution (January 14, 2004)

How to Read These Tables

Date : The date the plan was formally adopted by the TCEQ (unless otherwise noted).

Title: Abbreviated title of the plan. Clicking on the title brings you to a Web page with additional information about that plan (such as proposed versions, responses to comments, appendices, associated rulemaking documents, etc.).

Rule Log Number: Official Texas Register Rule Log Number (where applicable)

PDF: Acrobat Portable Document Format version of the plan.

Geographic Areas: Clicking on the header will bring you to a Web page with additional information on that area. An “X” indicates that the plan in that row is effective in the area of that column.

HGB: Houston-Galveston-Brazoria
DFW: Dallas-Fort Worth
BPA: Beaumont-Port Arthur
ELP: El Paso
NETX: Northeast Texas
ARR: Austin-Round Rock
SAN: San Antonio
VIC: Victoria
CC: Corpus Christi
Other: Other areas that are subject to a particular plan