Air Quality

Regulation and SIP Management

State Implementation Plan

The State Implementation Plan (SIP) is developed to show how a state will meet the National Ambient Air Quality Standards (NAAQS) for six common pollutants, called "criteria pollutants," as set forth by the Clean Air Act.

A SIP is the accumulated record of many documents that form a blueprint and timeline for the state's plans to assure compliance with the NAAQS for criteria pollutants (carbon monoxide, sulfur dioxide, ozone, nitrogen dioxide, lead, and particulate matter), as outlined in the Clean Air Act. SIPs include, among other things, control plans, regulations, inventories of emissions within the state, and transcripts of public involvement in the SIP-development process. Once approved, the SIP is enforceable by the state and EPA. Elements of South Carolina's SIP have been in place since 1972. Though there have been many amendments, there is only one South Carolina SIP. For more information, see EPA's SIP webpage.

History of the SIP

South Carolina's SIP includes the initial SIP, which was submitted to the U.S. Environmental Protection Agency (EPA) in 1972, and the accumulated record of its amendments. These amendments, along with the original SIP, constitute South Carolina's SIP. Though there are many amendments, there is only one South Carolina SIP. DHEC submits amendments to EPA, and after reviewing the revisions, EPA publishes a proposed action, which is open for public comment in the Federal Register. Possible proposed actions include approval, disapproval, partial approval, conditional approval, and a direct final rule. Following a review of the comments, the EPA issues a final rule on the amendments. The EPA memoranda that guide the SIP review process include a 1992 memorandum and April and November 2011 memoranda. EPA maintains approvals of all states' SIPs in the Code of Federal Regulations. South Carolina's are at 40 CFR Part 52, Approval of Implementation Plans, Subpart PP, South Carolina. For regulations included in the SIP that DHEC has amended, this table shows the date and Federal Register citation for the most recent approval.

In the table below lists the Federal Register notice taking action on the SIP revision. In some cases EPA actions revise the South Carolina SIP, even though the state had not submitted a revision. These actions are often a result of court cases that prompt EPA to change earlier SIP approvals. In the table below, "N/A" under "Date Submitted" indicates an EPA-led change. This table includes SIP amendment submittals to EPA going to back to 2000. For earlier submittals, please contact Maeve Mason, manager of the Regulation and SIP Management section by phone at (803) 898-2230 or by email.

Description	Date Submitted	EPA Approval Federal Register Notice/Date
2012
Regional Haze Periodic Update Regional Haze Web page Cover Letter: 2012 Regional Haze Periodic Review Periodic Review Appendix A: Back Trajectory Analysis of Beta Extinction Appendix B: Point Source SO₂ Emissions Reductions Appendix C: Notice of General Public Interest Appendix D: Written Comments and Responses Appendix E: Copy of Legal Authority	12/27/12	Under EPA Review
Ozone Infrastructure SIP Certification EPA Cover Letter Attachment A - October 24, 2011, Certification of SC 2008 8-Hour Ozone Infrastructure Requirements Attachment B - SIP Submittal Completeness Criteria Checklist Attachment C - South Carolina State Register Notice of General Public Interest, May 25, 2012 Attachment D - Legal Authority	7/17/12	Under EPA Review
2010 End of Year Revisions End of Year Revisions webpage Cover Letter Appendix A - Notice of Drafting, Notice of Proposed Regulation, And Staff Informational Forum Sign-In Sheet and Transcript Appendix B - Summary of Public Comments and Department Responses Appendix C - Notice of Cancellation and Rescheduling of Public Hearing, Board Public Hearing Transcript, and Notice of Final Regulation Appendix D - Copy of Legal Authority Text of Final Regulation	5/1/12	Proposed approval: 78 FR 7896, 1/23/13
Particulate Matter (PM) Infrastructure SIP Requirements EPA Cover Letter Attachment A - November 3, 2009, Certification for PM Infrastructure SIPS Attachment B - S.C. Attorney General's November 5, 1993, Opinion in the Title V Submittal Attachment C - South Carolina State Register Notice of Intent to Revise the SIP, February 24, 2012 Attachment D- Comment-Response Summary and Comments Attachment E - Legal Authority	4/3/12	77 FR 45492, 8/1/12
2011
Lead Infrastructure SIP Certification Cover Letter Attachment A � Certification Attachment B � Checklist Attachment C � Notice of General Public Interest Attachment D � Notice of Final Amendment to the SIP	9/20/11	Under EPA Review
Regulation Clean-up Regulation Clean-up Website Cover Letter Executive Summary Attachment 1 � Text of Final Regulations Attachment 2 � Comment Response Attachment 3 � Notices Attachment 4 � 110(l) Attachment 5 � Legal Authority	7/18/11	Proposed partial approval: 78 FR 7896, 1/23/13
Redesignation Demonstration and Maintenance Plan for the York Co. Portion of the Charlotte Nonattainment Area for the 1997 Ozone NAAQS Ozone webpage June 1, 2011 - SIP Cover Letter: Revisions to SC State Implementation Plan July 8, 2011 - Clarification Letter: Revisions to SC State Implementation Plan Narrative Appendices Appendix A - Point Source Emissions Inventory Documentation Appendix B - Area Emissions Inventory Documentation Appendix C - On-road Mobile Source Emissions Inventory Appendix D - Nonroad Emissions Inventory Documentation Appendix E - Pubic Notice published on March 25, 2011 in South Carolina State Register Appendix F - EPA Comments to Pre-hearing SIP Submittal and Department Response Appendix G - Copy of Legal Authority	6/1/11	77 FR 75862, 12/26/12
2009 End of Year Revisions End of Year Revisions webpage Cover Letter Appendix A - Notice of Drafting, Notice of Proposed Regulation, And Staff Informational Forum Sign-In Sheet and Transcript Appendix B - Summary of Public Comments and Department Responses Appendix C - Notice of Cancellation and Rescheduling of Public Hearing, Board Public Hearing Transcript, and Notice of Final Regulation Text of Final Regulation	2/16/2011	Proposed approval: 78 FR 7896, 1/23/13
2010
Air Emissions Reporting Requirements (AERR) Cover Letter Appendix A - Notice of Drafting, Notice of Proposed Regulation And Staff Informational Forum Sign-In Sheet and Transcript Appendix B - Board Public Hearing Transcript, and Notice of Final Regulation Appendix C - Copy of Legal Authority Text of Final Regulation	6/14/10	Under EPA Review
Clean Air Interstate Rule (CAIR) CAIR webpage Cover Letter Appendix A - Notice of Drafting, Notice of Proposed Regulation, And Staff Informational Forum Sign-In Sheet and Transcript Appendix B - Summary of Public Comments and Department Responses Appendix C - Notice of Cancellation and Rescheduling of Public Hearing, Board Public Hearing Transcript, and Notice of Final Regulation Appendix D - Copy of Legal Authority Text of Final Regulation	8/10/10	74 FR 53167, 10/16/09 (corrected in 76 FR 48208, 8/8/11)
One year extension request for the York County Portion of the Charlotte Nonattainment Area for the 1997 Ozone NAAQS	5/6/10	76 FR 31245, (5/31/11)
Supplement and Resubmission of the Attainment Demonstration for the York County Portion of the Charlotte Nonattainment Area for the 1997 Ozone NAAQS Withdrawal of portions of the 1997 8-hour Ozone Attainment Demonstration for the Metrolina nonattainment area (January 12, 2012) Supplement to the South Carolina 8-Hour Ozone Attainment Demonstration Appendix S.1 � Attainment Test South Carolina 8-Hour Ozone Attainment Demonstration State Implementation Plan (April 29, 2010) Attainment Demonstration - ADJUSTED Adjustments to South Carolina 8-Hour Ozone Attainment Demonstration State Implementation Plan Appendices Appendix A - Correspondence and Guidance Documents Appendix B - I & M Supporting Documents Appendix C - Air Quality Data Appendix D - Modeling Protocol Appendix E - Emissions Inventory Summary Appendix F.1 - Point Source Emissions Inventory Documentation Appendix F.2 - Non-point and Non-road Mobile Source Emissions Inventory Appendix F.3 - On-road Mobile Source Emissions Inventory - ADJUSTED Appendix G - Quality Assurance of the Emissions Inventories Appendix G - Quality Assurance of the Emissions Inventories Attachment to Appendix G - QAPP Appendix H - Emission Modeling Deviation from Defaults Appendix I - Meteorological Model Performance Appendix J - Model Performance Evaluation Appendix K - Modeling Results Appendix L - Attainment Test Appendix M - Adopted State Measures Appendix M 2 - Adopted State Control Measures R61-62.1 Definitions and General Requirements R61-62.2 Prohibition of Open Burning R61-62.5 Std2 Ambient Air Quality Standards R61-62.5 Std5.1 BACT-LAER for VOC R61-62.5 Std5.2 Control of Oxides of Nitrogen R61-62.5 Std5 Volatile Organic Compounds R61-62.5 Std7 Prevention of Significant Deterioration R61-62.5 Std7.1 Nonattainment New Source Review R61-62.96 NO_X Budget Trading Program R61-62.99 NO_X Budget for Sources Not in Trading Program Appendix N - Grid Resolution Journal Article 04052007 Appendix O - Reasonable Further Progress - ADJUSTED Appendix P - Contingency Measures Appendix Q - VISTAS Supporting Documentation Appendix R - RACT � NOT WITHDRAWN* Appendix S - RFATS Transportation Conformity Correspondence *Appendix R: RACT from the original attainment demonstration submitted is not included as it is not a part of the attainment demonstration that was withdrawn.	4/29/10	77 FR 75862, 12/26/12 Base Year Emissions Inventory approved 77 FR 29540(5/18/12) Emissions Statements approved 77 FR 37812 (6/25/12)
2011 New Source Review (NSR) Revisions	12/2/10	76 FR 36875 (6/23/11)

Description	Date Submitted	EPA Approval Federal Register Notice/Date
2009
2008 End of Year Revisions	12/23/09	Proposed approval: 78 FR 7896, 1/23/13
2006 Fine Particulate Matter National Ambient Air Quality Standards (NAAQS) Infrastructure SIP	9/18/09	77 FR 45492, (8/1/12)
Negative Declaration for Group IV Control Technology Guidelines (CTGs)	7/9/09	76 FR 72844 (11/28/12) (Also includes approval for CTG groups I, II, and III)
2009 New Source Review (NSR) Revisions	4/14/09	76 FR 36875 (6/23/11)
2008
1997 Ozone NAAQS Infrastructure SIP Certification	12/13/11	76 FR 41111 (7/13/11)
2007 End of Year Revisions	12/4/08	Proposed approval: 78 FR 7896, 1/23/13
Transportation Conformity	11/19/08	74 FR 37168 (7/28/09)
2007
Regional Haze	12/17/07	77 FR 38509, (6/28/2012)
Cherokee County 8-hour Ozone National Ambient Air Quality Standards (NAAQS) Attainment Demonstration and Maintenance Plan	12/13/07	74 FR 26099 (6/1/2009), Correction 75 FR 3870 (1/25/10)
Permit Streamlining	9/28/07	Under EPA Review
Reasonably Available Control Technology (RACT) for the York County Portion of the Charlotte-Gastonia-Rock Hill NC-SC Nonattainment Area for the 1997 Ozone National Ambient Air Quality Standards (NAAQS)	9/5/07	Under EPA Review
Clean Air Interstate Rule (CAIR)	8/14/07	72 FR 57209 (10/9/07) 74 FR 53167 (10/16/09) Correction 76 FR 48208 (8/8/11)
Other Waste Incinerators (OSWI) Plan	7/5/07
Section 110 (of the Clean Air Act) SIP for Interstate Transport for the 8-hour Ozone and PM_2.5 (Particulate Matter with an Aerodynamic Diameter of 2.5 Microns and Less Across)	6/25/07	76 FR 41111 (7/13/11)
2005
End of Year Revisions for 2004	10/24/05	71 FR 70880 (12/7/06) Clarification 72 FR 30704 (6/4/07)
2005 New Source Review Revisions	7/1/05	73 FR 31368 (June 2, 2008) (Conditional approval)
NO_X SIP Call Phase II (Transco Permit)	4/14/05	74 FR 18471 (4/23/09)
Consolidated Emissions Reporting Rule (CERR)	4/13/05	71 FR 70880 (12/7/06)
2004
Early Action Compacts	12/29/04	70 FR 50195 (8/26/05)
1997 Ozone and PM_2.5 NAAQS	11/19/04	72 FR 46903 (8/22/07)
2003
Transportation Conformity Memorandum of Agreement	11/19/03	69 FR 4245 (1/29/04)
Regulation 61-62.1 Revisions	11/14/03	70 FR 3632 (1/26/05)
Regulation 62.1, Section IV-Source Testing Revisions	7/25/03	69 FR 48395 (8/10/04)
2002
Regulation 61-62 Revisions	9/4/02	69 FR 48395 (8/10/04)
Commercial and Industrial Solid Waste Incineration	4/12/02	69 FR 9554 (3/1/04)
2001
Regulation 61-62 Revisions	11/21/01	67 FR 30594 (5/7/02)
Negative Declaration for Existing Small Municipal Waste Combustion Units	11/6/01	67 FR 5144 (1/31/03)
Credible Evidence, Removal of Standard 3	8/9/01 10/1/02	67 FR 68767 (11/13/02)
Revisions to the 1-hour Ozone Maintenance SIP for Cherokee County	2/21/01 1/31/02	67 FR 20647 (4/26/02)
2000
NO_X SIP Call	10/30/00 7/30/01 5/28/02	67 FR 43546 (6/28/02)

Description	Date Submitted	EPA Approval Federal Register Notice/Date
1998
Cherokee County 1-hour Ozone Demonstration and Ten Year Maintenance Plan	6/27/98	63 FR 70019 (12/18/98)
1997
EPA Reformatting of Materials Incorporated by Reference	N/A	62 FR 35441 (7/1/97)
1996
General Conformity	11/8/96	62 FR 32537 (6/16/97)
Regulation 61-62.5, Standard 7, Prevention of Significant Deterioration Revisions	5/6/96	62 FR 44218 (8/20/97)
Definition of Volatile Organic Compounds (VOCs) in Regulation 61-62.1 Revisions	5/6/96	62 FR 47760 (9/11/97)
1995
Revisions to Regulation 61-62.5, Standard 7, Prevention of Significant Deterioration	3/3/95	61 FR 6114 (2/16/96)
1993
South Carolina Small Business Assistance Program	1/20/93	60 FR 10323 (2/24/95)
1992
Maintenance Plan for the 1-hour Ozone National Ambient Air Quality Standard (NAAQS) for Cherokee County	7/20/92	57 FR 59300 (12/15/92)
1990
Regulation 61-62 Revisions	9/18/92, 7/23/92	59 FR 17936 (4/15/94)

Description	Date Submitted	EPA Approval Federal Register Notice/Date
1989
Regulation 61-62.1, Definitions	6/6/89, 9/27/90	63 FR 67584 (12/8/98)
Regulation 61-62 Revisions	3/16/89	55 FR 27226 (7/2/90)
1988
Stack Height Review	5/7/86, 12/2/86	54 FR 14650 (4/12/89)
PM 10 (Particulate Matter with an Aerodynamic Diameter of 10 Microns or Less) Revisions	4/22/88, 3/24/89	54 FR 40659 (10/3/89)
1987
Federal Implementation Plans for Visibility Long-Term Strategies, Integral Vistas, and Control Strategies	N/A	52 FR 45132 (11/24/87)
1986
Regulation 61-62.1 and 61-62.7, Stack Height, Revisions	6/11/86	52 FR 19858 (5/28/87)
Regulation 61-62.5, Standard 4, Emissions from Process Industries, Revisions	3/24/86, 7/8/86	52 FR 4772 (2/17/87)
1985
Federal Implementation Plans for Visibility New Source Review and Monitoring Strategy	N/A	50 FR 28544 (7/12/85)
Revisions to Ozone Control Strategy	6/5/85, 3/24/89, 8/24/90	54 FR 15181 (4/17/89) (disapproval), 57 FR 4158 (2/4/92)
Visibility Protection Control Strategy	6/3/85	51 FR 2698 (1/21/86)
1983
Columbia Transportation Control Plan and Methodology Manual for Use with Standards on Volatile Organic Compounds	3/3/83	49 FR 43469 (10/29/84)
Redesignation of Columbia for Ozone and Georgetown for TSP (Total Suspended Particulate)	3/31/83	48 FR 50316 (11/1/83)
Regulation 61-62 Revisions	3/3/83, 5/5/83, 7/11,83	48 FR 50078 (10/31/83), 54 FR 40659 (10/3/89)
Redesignation of Charleston for TSP	1/12/83	49 FR 30307 (7/30/84)
1982
Special Operating Permit for SCE&G Williams Station	6/25/82	48 FR 5722 (2/8/83)
Regulation 61-62.5, Standard 5, Alternative Emissions Limit Options (Bubble), and 61-62.5, Standard 3, Visible Emissions from Incinerators Revisions	6/27/98	47 FR 38887 (9/3/82) (partial approval), 60 FR 12700 (3/8/95) (disapproval)
1981
Regulation 61-62.1, Section II(B), Operating Permits, Revisions	10/27/81, 6/7/82	47 FR 32123 (7/26/82)
Regulation 61-62.5, Standard 4, Sections II, III, and XI, Revisions	5/15/81, 12/22/81	47 FR 29234 (6/6/82)
Prevention of Significant Deterioration (PSD) Permitting Program	4/14/81	47 FR 6017 (2/10/82)
Volatile Organic Compound Revisions	12/22/78	46 FR 61268 (12/16/81)
Regulation 61-62.5, Standard 6, Alternative Emission Reduction Options (Bubble) Revisions	6/17/81	46 FR 55098 (11/6/81)
Alternative Compliance Schedule for VOC Sources	1/5/81	46 FR 55967 (11/13/81)
1980
Visible Emissions Standard	9/10/80	46 FR 61268 (12/16/81)
Public Participation Provisions	3/10/80	46 FR 40189 (8/7/81)
Air Quality Surveillance Plan	3/10/80	46 FR 37047 (7/17/81)
Emergency Episode Plan Revisions	9/10/80	46 FR 35259 (7/8/81)
Lead Implementation Plan	5/1/80 5/1/80	46 FR 58082 (11/30/81)
EPA Approval of Nonattainment Area SIPs	N/A	45 FR 6572 (1/29/80)

Description	Date Submitted	EPA Approval Federal Register Notice/Date
1979
Lyman Printing and Finishing Permit	5/9/79	44 FR 54707 (9/21/79)
1978
Control Technology Guidelines (CTGs) and Revisions to Regulation 61-62.5, Standard 5	12/22/78 9/10/80	46 FR 57486 (11/24/81)
Nonattainment Area Provisions in Regulation 61-62	12/20/78	46 FR 61268 (12/16/81)
1977
Particulate Control Strategy, including Revised Particulate Matter Emissions Limits and Monitoring Requirements	1/13/77 3/30/77	43 FR 59495 (12/12/78)
New Source Review (NSR) Delegation of Authority	N/A	42 FR 4124 (1/24/77)
1976
EPA Clarified "Identification of Plan" Sections of All SIPs	N/A	41 FR 8956 (3/2/76)
1975
EPA Disapproval of All States' SIPs with Respect to Prevention of Significant Deterioration (PSD)	N/A	40 FR 25004 (6/12/75)
Delegation of Authority for Compliance Determinations	N/A	41 FR 10062 (3/9/76)
Delegation of Authority for Public Access to Emissions Data	10/15/75	40 FR 55326 (11/28/75)
1974
EPA Prevention of Significant Deterioration (PSD) SIP Revisions	N/A	39 FR 42510 (12/5/74)
EPA Action to Address Court Decision on Indirect Sources	N/A	39 FR 7270 (2/25/74)
SO₂ Emissions Limits	3/14/74	39 FR 32329 (9/6/74)
1973
EPA Compliance Schedules for Certain Source Categories	N/A	38 FR 22735 (8/23/73), 38 FR 24333 (9/7/73)
Revisions to Standards 1-5	8/23/73	39 FR 4082 (2/1/74)
Designation of Air Quality Maintenance Areas	8/16/73 3/14/74 3/22/74	40 FR 18726 (4/29/75)
EPA Disapproval of All States' SIPs with respect to the maintenance of standards	N/A	38 FR 6279 (3/8/73)
Compliance Schedules	2/16/73	38 FR 161434 (6/20/73)
1972
Identification of State Plan, Delegation of Authority	5/4/72 7/21/72 8/23/72	37 FR 23085 (10/28/72)
Original SIP	1/21/72	37 FR 10842 (5/31/72)

For more information please contact the Bureau of Air Quality at (803) 898-4123 or by email.

South Carolina Department of Health and Environmental Control

Regulation and SIP Management

State Implementation Plan

History of the SIP