Air Pollutants - Ozone - Standards & Requirements
State Implementation Plan (SIP)
The federal Clean Air Act requires each state to develop a State Implementation Plan (SIP) that outlines the state's strategy for controlling air pollution for each of the National Ambient Air Quality Standards (standard). A SIP is a plan that can include a narrative, models, regulations, programs, and other technical documentation that a state presents as evidence of its efforts to address air pollution and maintain good air quality.
The Clean Air Act requires states to involve the general public and industry through public hearings and opportunities to comment on the development of each state plan. States then submit the initial SIP or SIP revision to EPA for approval. Once approved, the SIP is enforceable by the state and EPA.
Infrastructure Certification SIPs are the general plans that each state must submit for implementing, maintaining, and enforcing any new or revised primary and secondary standard. These plans are due three years from the promulgation date of a new or revised standard regardless of the designations process. These are detailed in sections 110(a)(1) and (2) of the Clean Air Act.
July 7, 2012 - 2008 Ozone Air Quality Implementation Plan - 110(a)(1) and (2) 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
- July 13, 2011 - EPA approved the December 13, 2007, submittal
- December 13, 2007 - 1997 Ozone Air Quality Implementation Plan - 110(a)(1) and (2) Certification
- Approval status of the 1997 Ozone Infrastructure SIP (EPA)
Additional Resources
- May 21, 2012: EPA published designations for the 2008 ozone standard
- May 14, 2012: DHEC requests to participate in EPA's Ozone Advance Program (EPA Web page)
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For more information please contact the Bureau of Air Quality at (803) 898-4123 or by email.