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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

12/27/12 Under EPA Review

Ozone Infrastructure SIP Certification

7/17/12 Under EPA Review

2010 End of Year Revisions

5/1/12 Proposed approval: 78 FR 7896, 1/23/13

Particulate Matter (PM) Infrastructure SIP Requirements

4/3/12 77 FR 45492, 8/1/12
2011

Lead Infrastructure SIP Certification

9/20/11 Under EPA Review

Regulation Clean-up

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

6/1/11 77 FR 75862, 12/26/12

2009 End of Year Revisions

2/16/2011 Proposed approval: 78 FR 7896, 1/23/13
2010

Air Emissions Reporting Requirements (AERR)

6/14/10 Under EPA Review

Clean Air Interstate Rule (CAIR)

8/10/10 74 FR 53167, 10/16/09 (corrected in 76 FR 48208, 8/8/11)
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

South Carolina 8-Hour Ozone Attainment Demonstration
State Implementation Plan (April 29, 2010)

Appendices

Appendix G - Quality Assurance of the Emissions Inventories

Appendix M 2 - Adopted State Control Measures

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)
12/2/10 76 FR 36875 (6/23/11)
Description Date Submitted EPA Approval Federal Register Notice/Date
2009
12/23/09 Proposed approval: 78 FR 7896, 1/23/13
9/18/09 77 FR 45492, (8/1/12)
7/9/09 76 FR 72844 (11/28/12) (Also includes approval for CTG groups I, II, and III)
4/14/09 76 FR 36875 (6/23/11)
2008
12/13/11 76 FR 41111 (7/13/11)
12/4/08 Proposed approval: 78 FR 7896, 1/23/13
11/19/08 74 FR 37168 (7/28/09)
2007
12/17/07 77 FR 38509, (6/28/2012)
12/13/07 74 FR 26099 (6/1/2009), Correction 75 FR 3870 (1/25/10)
9/28/07 Under EPA Review
9/5/07 Under EPA Review
8/14/07 72 FR 57209 (10/9/07)
74 FR 53167 (10/16/09)
Correction 76 FR 48208 (8/8/11)
7/5/07
6/25/07 76 FR 41111 (7/13/11)
2005
10/24/05 71 FR 70880 (12/7/06) Clarification 72 FR 30704 (6/4/07)
7/1/05 73 FR 31368 (June 2, 2008) (Conditional approval)
4/14/05 74 FR 18471 (4/23/09)
4/13/05 71 FR 70880 (12/7/06)
2004
12/29/04 70 FR 50195 (8/26/05)
11/19/04 72 FR 46903 (8/22/07)
2003
11/19/03 69 FR 4245 (1/29/04)
11/14/03 70 FR 3632 (1/26/05)
7/25/03 69 FR 48395 (8/10/04)
2002
9/4/02 69 FR 48395 (8/10/04)
4/12/02 69 FR 9554 (3/1/04)
2001
11/21/01 67 FR 30594 (5/7/02)
11/6/01 67 FR 5144 (1/31/03)
8/9/01
10/1/02
67 FR 68767 (11/13/02)
2/21/01
1/31/02
67 FR 20647 (4/26/02)
2000
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
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.