Identification of plan.

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Air Programs
  6. Approval and Promulgation of Implementation Plans
  7. Arkansas
  8. Identification of plan.

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§ 52.170 Identification of plan.

(a) Purpose and scope. This section sets forth the applicable State Implementation Plan (SIP) for Arkansas under section 110 of the Clean Air Act, 42 U.S.C. 7410, and 40 CFR part 51 to meet national ambient air quality standards.

(b) Incorporation by reference.

(1) Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to December 1, 2005, was approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Material is incorporated as it exists on the date of the approval, and notice of any change in the material will be published in the Federal Register. Entries in paragraphs (c) and (d) of this section with EPA approval dates after December 1, 2005, will be incorporated by reference in the next update to the SIP compilation.

(2) EPA Region 6 certifies that the rules/regulations provided by EPA in the SIP compilation at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated State rules/regulations that have been approved as part of the State implementation plan as of December 1, 2005.

(3) Copies of the materials incorporated by reference may be inspected at https://www.epa.gov/sips-ar or the Environmental Protection Agency, Region 6, 1201 Elm Street, Suite 500, Dallas, Texas 75270-2102. If you wish to obtain material from the EPA Regional Office, please call (800) 887-6063 or (214) 665-2760.

(c) EPA approved regulations.

Expand Table

EPA-Approved Regulations in the Arkansas SIP

State citation Title/subject State
submittal/effective date 		EPA approval date Explanation
Regulation No. 19: Regulations of the Arkansas Plan of Implementation for Air Pollution Control
Chapter 1: Title, Intent and Purpose
Reg. 19.101 Title 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.102 Applicability 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.103 Intent and Construction 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.104 Severability 11/18/2012 3/4/2015, 80 FR 11573
Chapter 2: Definitions
Chapter 2 Definitions 9/27/2019 2/12/2021, 86 FR 9290
Chapter 3: Protection of the National Ambient Air Quality Standards
Reg. 19.301 Purpose 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.302 Department Responsibilities 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.303 Regulated Sources Responsibilities 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.304 Delegated Federal Programs 3/24/2017 8/8/2018, 83 FR 38964
Chapter 4: Minor Source Review
Reg. 19.401 General Applicability 3/24/2017 6/29/2018, 83 FR 30553 Includes supplemental information provided on 11/30/2015, 5/26/2016, 7/5/2017, and 3/16/2018.
Reg. 19.402 Approval Criteria 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.403 Owner/Operator's Responsibilities 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.404 Required Information 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.405 Action on Application 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.406 Public Participation 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.407 Permit Amendments 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.408 Exemption from Permitting 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.409 Transition 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.410 Permit Revocation and Cancellation 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.411 General Permits 7/26/2010 8/23/2019, 84 FR 44235
Reg. 19.412 Dispersion Modeling 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.413 Confidentiality 7/26/2010 8/23/2019, 84 FR 44235
Reg. 19.414 Operational Flexibility-Applicant's Duty to Apply for Alternative Scenarios 7/26/2010 8/23/2019, 84 FR 44235
Reg. 19.415 Changes Resulting in No Emissions Increases 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.416 Permit Flexibility 7/26/2010 8/23/2019, 84 FR 44235
Reg. 19.417 Registration 7/26/2010 6/29/2018, 83 FR 30553 Includes supplemental information provided on 11/30/2015, 5/26/2016, 7/5/2017, and 3/16/2018.
Chapter 5: General Emission Limitations Applicability to Equipment
Reg. 19.501 Purpose 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.502 General Regulations 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.503 Visible Emission Regulations 1/25/2009 3/4/2015, 80 FR 11573
Reg. 19.504 Stack Height/Dispersion Regulations 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.505 Revised Emissions Limitation 1/25/2009 3/4/2015, 80 FR 11573
Chapter 6: Upset and Emergency Conditions
Reg. 19.601 Upset Conditions 1/25/2009 3/4/2015, 80 FR 11573
Reg. 19.602 Emergency Conditions 1/25/2009 3/4/2015, 80 FR 11573
Chapter 7: Sampling, Monitoring, and Reporting Requirements
Reg. 19.701 Purpose 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.702 Air Emissions Sampling 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.703 Continuous Emissions Monitoring 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.704 Notice of Completion 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.705 Recordkeeping and Reporting Requirements 6/22/2007 1/15/2009, 74 FR 2383
Reg. 19.706 Public Availability of Emissions Data 2/3/2005 4/12/2007, 72 FR 18394
Chapter 9: Prevention of Significant Deterioration
Reg. 19.901 Title 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.902 Purposes 1/25/2009 4/2/2013, 78 FR 19596
Reg. 19.903 Definitions 3/24/2017 8/23/2019, 84 FR 44235
Reg. 19.904 Adoption of Regulations 3/24/2017 8/23/2019, 84 FR 44235
Chapter 10: Regulations for the Control of Volatile Organic Compounds in Pulaski County
Reg. 19.1001 Title 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1002 Purpose 1/25/2009 3/4/2015, 80 FR 11573
Reg. 19.1003 Definitions 1/25/2009 3/4/2015, 80 FR 11573
Reg. 19.1004 General Provisions 1/25/2009 3/4/2015, 80 FR 11573
Reg. 19.1005 Provisions for Specific Processes 1/25/2009 3/4/2015, 80 FR 11573
Reg. 19.1006 Severability 2/3/2005 4/12/2007, 72 FR 18394
Chapter 11: Major Source Permitting Procedures
Chapter 11 Major Source Permitting Procedures 3/24/2017 8/23/2019, 84 FR 44235
Chapter 13: Stage I Vapor Recovery
Reg. 19.1301 Provisions for Specific Processes 1/25/2009 3/4/2015, 80 FR 11573
Reg. 19.1302 Applicability 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1303 Definitions 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.1304 Exemptions 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1305 Prohibited Activities 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1306 Record Keeping 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1307 Inspections 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1308 Vapor Recovery Systems 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.1309 Gasoline Delivery Vessels 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1310 Owner/Operator Responsibility 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1311 Test Methods 2/3/2005 4/12/2007, 72 FR 18394
Reg. 19.1312 Effective Date 2/3/2005 4/12/2007, 72 FR 18394
Chapter 14 - CAIR NOX Ozone Season Trading Program General Provisions
Reg. 19.1401 Adoption of Regulations 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.1402 State Trading Budget 7/15/2007 9/26/2007, 72 FR 54556
Reg. 19.1403 Timing Requirements for CAIR NOX Ozone Season Allowance Allocations 7/15/2007 9/26/2007, 72 FR 54556
Reg. 19.1404 CAIR NOX Ozone Season Allowance Allocations 9/16/2009 4/17/2014, 79 FR 21631
Chapter 15: Regional Haze
Reg. 19.1501 Purpose 1/25/2009 3/12/2012, 77 FR 14604
Reg. 19.1502 Definitions 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.1503 BART Eligible Sources 1/25/2009 3/12/2012, 77 FR 14604
Reg. 19.1504 Facilities Subject-to-BART 3/24/2017 8/8/2018, 83 FR 38964
Reg. 19.1505 BART Requirements 1/25/2009 3/12/2012, 77 FR 14604 The following portions of Reg. 19.1505 are disapproved: (A)(1) and (2), (B), (C), (D)(1) and (2), (E), (F)(1) and (2), (G)(1) and (2), (H), (I)(1) and (2), (J)(1) and (2), (K), (L), (M)(1), and (N).
Reg. 19.1506 Compliance Provisions 1/25/2009 3/12/2012, 77 FR 14604 The requirement to demonstrate compliance with the BART limits listed in Reg. 19.1505 (A)(1) and (2), (B), (C), (D)(1) and (2), (E), (F)(1) and (2), (G)(1) and (2), (H), (I)(1) and (2), (J)(1) and (2), (K), (L), (M)(1), and (N) is disapproved.
Reg. 19.1507 Permit Reopening 1/25/2009 3/12/2012, 77 FR 14604
Appendix A: Insignificant Activities List
Appendix A Insignificant Activities List 3/24/2017 8/23/2019, 84 FR 44235
Appendix B: National Ambient Air Quality Standards List
Appendix B National Ambient Air Quality Standards List 9/27/2019 2/12/2021, 86 FR 9290
Regulation 26: Regulations of the Arkansas Operating Permit Program
Chapter 3: Requirements for Permit Applicability
Reg. 26.301 Requirement for a permit 7/26/2010 8/23/2019, 84 FR 44235
Reg. 26.302 Sources subject to permitting 3/24/2017 8/23/2019, 84 FR 44235
Chapter 4: Applications for Permits
Reg. 26.401 Duty to apply 3/24/2017 8/23/2019, 84 FR 44235
Reg. 26.402 Standard application form and required information 3/24/2017 8/23/2019, 84 FR 44235
Reg. 26.407 Complete application 3/24/2017 8/23/2019, 84 FR 44235
Reg. 26.409 Applicant's duty to supplement correct application 7/26/2010 8/23/2019, 84 FR 44235
Reg. 26.410 Certification by responsible official 7/26/2010 8/23/2019, 84 FR 44235
Chapter 5: Action on Application
Reg. 26.501 Action on part 70 permit applications 7/26/2010 8/23/2019, 84 FR 44235
Reg. 26.502 Final action on permit application 3/24/2017 8/23/2019, 84 FR 44235
Chapter 6: Permit Review by the Public, Affected States, and EPA
Reg. 26.601 Applicability 7/26/2010 8/23/2019, 84 FR 44235
Reg. 26.602 Public participation 3/24/2017 8/23/2019, 84 FR 44235
Reg. 26.603 Transmission of permit information to the Administrator 3/24/2017 8/23/2019, 84 FR 44235
Reg. 26.604 Review of draft permit by affected States 3/24/2017 8/23/2019, 84 FR 44235
Regulation No. 31: Nonattainment New Source Review Requirements
Chapter 1: Title, Intent, and Purpose
Reg. 31.101 Title 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.102 Applicability 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.103 Severability 7/3/2006 4/12/2007, 72 FR 18394
Chapter 2: Definitions
Chapter 2 Definitions 7/3/2006 4/12/2007, 72 FR 18394
Chapter 3: Preconstruction review
Reg. 31.301 Requirement for a Permit 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.302 Required Information 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.303 Approval Criteria 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.304 Offsets 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.305 Zones Targeted for Economic Development 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.306 Control Technology Information 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.307 Approval to Construct 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.308 Applicability of Nonattainment Review 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.309 Applicability of Other Regulations 7/3/2006 4/12/2007, 72 FR 18394
Chapter 4: Applicability Tests
Reg. 31.401 Actual-to-Projected-Actual Applicability Test 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.402 Actual-to-Potential Test 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.403 [Reserved] 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.404 [Reserved] 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.405 Emission Baseline Credits 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.406 Relaxation of Limits 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.407 Modifications to Existing Units 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.408 Public Availability of Information 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.409 Applicability of Nitrogen Oxides 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.410 Offset Requirements 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.411 PM10 Precursors 7/3/2006 4/12/2007, 72 FR 18394
Chapter 5: [Reserved]
Chapter 6: [Reserved]
Chapter 7: [Reserved]
Chapter 8: Actual PALS
Reg. 31.801 Applicability 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.802 Definitions 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.803 Permit Application Requirements 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.804 General Requirements for Establishing PALs 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.805 Public Participation Requirement for PALs 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.806 Setting the 10-year Actuals PAL Level 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.807 Contents of the PAL Permit 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.808 Reopening of the PAL Permit 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.809 PAL Effective Period 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.810 Expiration of a PAL 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.811 Renewal of a PAL 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.812 Increasing a PAL During the PAL Effective Period 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.813 Monitoring Requirements for PALs 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.814 Recordkeeping Requirements 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.815 Reporting and Notification Requirements 7/3/2006 4/12/2007, 72 FR 18394
Reg. 31.816 Transition Requirements 7/3/2006 4/12/2007, 72 FR 18394
Chapter 9: Effective Date
Reg. 31.901 Effective Date 7/3/2006 4/12/2007, 72 FR 18394
Regulation No. 9: Fee Regulation
Chapter 1 Title 7/9/2012 4/30/2015, 80 FR 24216
Chapter 2 Definitions 7/9/2012 4/30/2015, 80 FR 24216 The following definitions do not relate to the air program and are not being approved into the SIP: “Category”, “Certificate”, “Confined Animal Operation”, “Discretionary Major Facility”, “Evaluation”, “Laboratory“, “Major Municipal Facility”, “Non-Municipal Major Facility”, “Parameter”, “Program”.
Chapter 3 Permit Fee Payment 7/9/2012 4/30/2015, 80 FR 24216
Chapter 5 Air Permit Fees 7/9/2012 4/30/2015, 80 FR 24216
Chapter 9 Administrative Procedures 7/9/2012 4/30/2015, 80 FR 24216

(d) EPA-approved State source-specific requirements.

Expand Table

EPA-Approved Arkansas Source-Specific Requirements

Name of source Permit or Order No. State
approval/
effective
date 		EPA approval date Comments
Arkansas Electric Cooperative Corporation Carl E. Bailey Generating Station Administrative Order LIS No. 18-071 8/7/2018 9/27/2019, 84 FR 51033 Unit 1.
Arkansas Electric Cooperative Corporation John L. McClellan Generating Station Administrative Order LIS No. 18-071 8/7/2018 9/27/2019, 84 FR 51033 Unit 1.
Southwestern Electric Power Company Flint Creek Power Plant Administrative Order LIS No.
18-072		 8/7/2018 9/27/2019, 84 FR 51033 Unit 1.
Entergy Arkansas, Inc. Lake Catherine Plant Administrative Order LIS No. 18-073 8/7/2018 9/27/2019, 84 FR 51033 Unit 4.
Entergy Arkansas, Inc. White Bluff Plant Administrative Order LIS No. 18-073 8/7/2018 9/27/2019, 84 FR 51033 Units 1, 2, and Auxiliary Boiler.
Entergy Arkansas, Inc. Independence Plant Administrative Order LIS No. 18-073 8/7/2018 9/27/2019, 84 FR 51033 Units 1 and 2.
Domtar Ashdown Mill Permit #0287-AOP-R22 8/1/2019 3/22/2021, 86 FR 15104 Approval of plantwide conditions 32 to 43 of section VI from the permit, addressing emission limits for SO2, NOX, and PM10 and conditions for implementing the BART alternative for Power Boilers No. 1 and 2.

(e) EPA-approved nonregulatory provisions and quasi-regulatory measures.

Expand Table

EPA-Approved Statutes in the Arkansas SIP

State citation Title/subject State
submittal/
effective
date 		EPA approval date Explanation
Arkansas Water and Air Pollution Control Act - Part I
82.1901 Title of Act 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1902 Definitions 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1903 Pollution Control Commission 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1904 Powers and Duties of Commission 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1905 Persons Operating Disposal System - Furnishing Information and Permitting Examinations and Surveys 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1906 Hearing Before Commission or Member - Appeal Procedure 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1907 Co-operation with Agency of Another State or United States 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1908 Actions Declared Public Nuisance - Permit to Construct, Make Changes in or Operate Disposal System - Submission of Plans 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82.1909 Violation of Act a Misdemeanor - Pollution a Nuisance - Abatement 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
Arkansas Environmental Permit Fees Act (Act 817 of 1983)
82-1916 thru 82-1921 Permit Fees Act 12/16/1985 11/12/1986, 51 FR 40975 Ref 522.200(c)(24).
Arkansas Water and Air Pollution Control Act - Part II
82-1931 Air Pollution-State Policy 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1932 Purpose of Act 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1933 Definitions 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1934 Exemptions 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1935 Powers of Commission 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1936 Factors in Exercise of Commission Powers 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1937 Industrial Secrets Confidential - Revealing a Misdemeanor 11/25/1985 8/4/1986, 51 FR 27840 Ref 52.200(c)(23).
82-1938 Unlawful Acts 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1939 Variance from Regulations 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1940 Application of Water Pollution Provisions 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1941 Political Subdivision Forbidden to Legislate on Air Pollution 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1942 Radiation Control Law Not Amended or Repealed - No Authority to Commission Over Employer-Employee Relationships 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
82-1943 Private Rights Unchanged 1/28/1972 5/31/1972, 37 FR 10841 Ref 52.200(a) & (b).
Small Business Assistance Program Act (Act 251 of 1993)
Act 251 SBAP Act 2/26/1993 3/8/1995, 60 FR 12691 Ref 52.200(c)(31).
Expand Table

EPA-Approved Control Measures in the Arkansas SIP

Control measures Applicable geographic or nonattainment area State
submittal/
effective
date 		EPA approval date Explanation
Air Quality Surveillance Statewide 4/24/1980 8/6/1981, 46 FR 40005 Ref 52.200(c)(6) & (20).
Lead SIP Statewide 12/10/1979 4/16/1982, 47 FR 16328 Ref 52.200(c)(17).
Protection of Visibility in Mandatory Class I Federal Areas Statewide 6/12/1985 2/10/1986, 51 FR 4910 Ref 52.200(c)(22).
Part II of the Visibility Protection Plan Statewide 10/9/1987 7/21/1988, 53 FR 27514 Ref 52.200(c)(25).
Good Engineering Practice Stack Height Regulations Statewide 6/1/1987 2/23/1989, 54 FR 7764 Ref 52.200(c)(26).
Small Business Stationary Source Technical and Environmental Compliance Assistance Program Statewide 11/6/1992 3/8/1995, 60 FR 12691 Ref 52.200(c)(31).
Expand Table

EPA-Approved Non-Regulatory Provisions and Quasi-Regulatory Measures in the Arkansas SIP

Name of SIP provision Applicable geographic or nonattainment area State
submittal/
effective date 		EPA approval date Explanation
Emissions Inventory for Crittenden County Crittenden County 6/22/2007 1/15/2009, 74 FR 2383
8-Hour Ozone Maintenance plan for the Crittenden County, Arkansas Area Crittenden, Shelby County 2/26/2009 3/24/2010, 75 FR 14077
Interstate Transport for the 1997 ozone and PM2.5 NAAQS (Noninterference with measures required to protect visibility in any other State) Statewide 3/28/2008 3/12/2012, 77 FR 14604 Noninterference with measures required to protect visibility in any other State partially approved 3/12/2012.
Regional Haze SIP Statewide 9/23/2008,
8/3/2010		 3/12/2012, 77 FR 14604 The following portions are partially approved and partially disapproved:
(a) Identification of affected Class I areas (a) Identification of best available retrofit technology (BART) eligible sources and subject to BART sources;
(b) Determination of baseline and natural visibility conditions (b) requirements for best available retrofit technology (BART);
(c) Determination of the Uniform Rate of Progress (c) the Arkansas Regional Haze Rule; and
(d) Reasonable progress goal consultation and long term strategy consultation (d) Long Term Strategy. (See § 52.173(a)).
(e) Coordination regional haze and reasonably attributable visibility impairment
(f) Monitoring Strategy and other implementation requirements
(g) Commitment to submit periodic Regional Haze SIP revisions and periodic progress reports describing progress towards the reasonable progress goals
(h) Commitment to make a determination of the adequacy of the existing SIP at the time a progress report is submitted
(i) Coordination with States and Federal Land Managers
(j) The following best available retrofit technology (BART) determinations: PM BART determination for the AEP Flint Creek Plant Boiler No. 1; SO2 and PM BART determinations for the natural gas firing scenario for the Entergy Lake Catherine Plant Unit 4; PM BART determinations for both the bituminous and sub-bituminous coal firing scenarios for the Entergy White Bluff Plant Units 1 and 2; and PM BART determination for the Domtar Ashdown Mill Power Boiler No. 1
Infrastructure for the 1997 Ozone NAAQS Statewide 12/17/2007
3/28/2008		 8/20/2012, 77 FR 50033 Approval for CAA elements 110(a)(2)(A), (B), (E), (F), (G), (H), (K), (L), and (M). Approval for CAA elements 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality), (D)(ii), and (J) for the 1997 ozone NAAQS, except as it relates to Greenhouse Gas (GHG) emissions. The GHG PSD deficiency was addressed on April 2, 2013 (78 FR 19596).
Infrastructure for the 1997 and 2006 PM2.5 NAAQS Statewide 3/28/2008,
9/16/2009,
12/1/2014		 3/4/2015, 80 FR 11573 Approval for CAA elements 110(a)(2)(A), (B), (E), (F), (G), (H), (K), (L), and (M) on 8/20/2012, 77 FR 50033. Approval for PSD elements (C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality), D(ii) and (J) on March 4, 2015 (80 FR 11573)
Interstate transport for the 1997 ozone NAAQS (Noninterference with measures required to prevent significant deterioration of air quality in any other State) Statewide 4/5/2011 8/20/2012, 77 FR 50033 Approved except as it relates to GHGs. The GHG PSD deficiency was addressed on April 2, 2013 (78 FR 19596).
Interstate transport for the 1997 and 2006 PM2.5 NAAQS (contribute to nonattainment or interfere with maintenance) Statewide 12/17/2007
9/16/2009		 8/29/2013, 78 FR 53269
Crittenden County Base Year Emission Inventory for the 2008 Ozone Standard Crittenden County 8/28/2015 1/13/2016, 81 FR 1884
2008 8-hour ozone Redesignation Request, Maintenance Plan, and Clarification Letter for the Crittenden County portion of Memphis, TN-AR-MS Nonattainment Area Crittenden County portion of Memphis, TN-AR-MS Nonattainment Area 12/10/2015 4/25/2016, 81 FR 24030
Arkansas Regional Haze NOX SIP Revision Statewide 10/31/2017 2/12/2018, 83 FR 5927 Regional Haze SIP submittal addressing NOX BART requirements for Arkansas EGUs and reasonable progress requirements for NOX for the first implementation period.
Infrastructure for the 2006 PM2.5 NAAQS Statewide 3/24/2017 2/14/2018, 83 FR 6470 Approval for 110(a)(2)(D)(ii).
Infrastructure for the 2008 Pb NAAQS Statewide 3/24/2017 2/14/2018, 83 FR 6470 Approval for 110(a)(2)(A), (B), (C), (D), (E), (F), (G), (H), (J), (K), (L) and (M).
Infrastructure for the 2008 O3 NAAQS Statewide 3/24/2017 2/14/2018, 83 FR 6470 Approval for 110(a)(2)(A), (B), (C), (D)(i) (portions pertaining and PSD), (D)(ii), (E), (F), (G), (H), (J), (K), (L) and (M).
Infrastructure for the 2010 NO2 NAAQS Statewide 3/24/2017 2/14/2018, 83 FR 6470 Approval for 110(a)(2)(A), (B), (C), (D)(i)(portion pertaining to nonattainment interference with maintenance and PSD), (D)(ii), (E), (F), (G), (H), (J), (K), (L) and (M).
Infrastructure for the 2010 SO2 NAAQS Statewide 3/24/2017 2/14/2018, 83 FR 6470 Approval for 110(a)(2)(A), (B), (C), (D)(i) (portion pertaining to PSD), (D)(ii), (E), (F), (G), (H), (J), (K), (L) and (M). Approval for 110(a)(2)(D)(i)(I) on 10/18/2019.
Infrastructure for the 2012 PM2.5 NAAQS Statewide 3/24/2017 2/14/2018, 83 FR 6470 Approval for 110(a)(2)(A), (B), (C), (D)(i) (portion pertaining to PSD), (D)(ii), (E), (F), (G), (H), (J), (K), (L) and (M).
Approval for 110(a)(2)(D)(i)(I) (significant contribution to nonattainment or interfere with maintenance in any other state) on 9/20/2018, 83 FR 47569.
Arkansas Regional Haze Phase II SIP Revision Statewide 8/8/2018 9/27/2019, 84 FR 51033 Regional Haze SIP revision addressing SO2 and PM BART requirements for Arkansas EGUs, NOX BART requirement for the White Bluff Auxiliary Boiler, reasonable progress requirements for SO2 and PM for the first implementation period, and the long-term strategy requirements. We are approving a portion of this SIP revision. There are two aspects of this SIP revision we are not taking action on at this time: (1) The interstate visibility transport requirements under section 110(a)(2)(D)(i)(II); and (2) the long-term strategy is approved with respect to sources other than the Domtar Ashdown Mill.
Arkansas SIP Review for the Five-Year Regional Haze Progress Report Statewide 6/2/2015 10/1/2019, 84 FR 51986
Infrastructure for the 2015 O3 NAAQS Statewide 9/27/2019 2/12/2021, 86 FR 9290 Approval for 110(a)(2)(A), (B), (C), (D)(i) (portion pertaining to PSD), (D)(ii), (E), (F), (G), (H), (J), (K), (L) and (M).
Arkansas Regional Haze Phase III SIP Revision Statewide 8/13/2019 3/22/2021, 86 FR 15104 Approval of regional haze SIP revision pertaining to the Domtar Ashdown mill that addresses SO2, NOX, and PM10 BART alternative requirements under 40 CFR 51.308(e)(2); reasonable progress components under 40 CFR 51.308(d)(1); and long-term strategy components under 40 CFR 51.308(d)(3) for this facility.
Arkansas 2015 O3 NAAQS Interstate Transport SIP Revision Statewide 10/4/2019 3/22/2021, 86 FR 15104 Approval of visibility transport portion of this interstate transport SIP revision that addresses CAA section 110(a)(2)(D)(i)(II) for the following NAAQS: 2006 24-hour PM2.5 NAAQS; the 2012 annual PM2.5 NAAQS; the 2008 and 2015 eight-hour O3 NAAQS; the 2010 one-hour NO2 NAAQS; and the 2010 one-hour SO2 NAAQS.
Arkansas Regional Haze SO2 and PM SIP Revision Statewide 8/8/2018 3/22/2021, 86 FR 15104 Approval of visibility transport portion of this regional haze SIP revision, as supplemented by the Arkansas 2015 O3 NAAQS Interstate Transport SIP Revision.

[63 FR 56927, Oct. 23, 1998, as amended at 65 FR 61107, Oct. 16, 2000; 66 FR 51316, Oct. 9, 2001; 71 FR 13545, Mar. 16, 2006; 72 FR 18396, Apr. 12, 2007; 72 FR 54561, Sept. 26, 2007; 74 FR 2386, Jan. 15, 2009; 75 FR 14080, Mar. 24, 2010; 77 FR 14675, 14676, Mar. 12, 2012; 77 FR 50037, Aug. 20, 2012; 78 FR 19598, Apr. 2, 2013; 78 FR 53270, Aug. 29, 2013; 80 FR 11574, Mar. 4, 2015; 80 FR 24218, Apr. 30, 2015; 80 FR 38627, July 7, 2015; 81 FR 1887, Jan. 14, 2016; 81 FR 24032, Apr. 25, 2016; 82 FR 60520, Dec. 21, 2017; 83 FR 5939, Feb. 12, 2018; 83 FR 6472, Feb. 14, 2018; 83 FR 30570, June 29, 2018; 83 FR 38966, Aug. 8, 2018; 83 FR 47571, Sept. 20, 2018; 84 FR 44228, Aug. 23, 2019; 84 FR 44236, Aug. 23, 2019; 84 FR 51053, Sept. 27, 2019; 84 FR 51988, Oct. 1, 2019; 84 FR 55865, Oct. 18, 2019; 86 FR 9293, Feb. 12, 2021; 86 FR 15131, Mar. 22, 2021; 86 FR 20290, Apr. 19, 2021]


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