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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.

SIP Public Hearings

If a public hearing is highlighted in red below, then DHEC did not receive a request for that hearing and the hearing is cancelled. This process is further explained in Public Hearings and Submission of Plans, 72 FR 38787 (July 16, 2007).

Description Notice Public
SO2Infrastructure SIP

Notice of General Public Interest
Comment period: 2/28/14-3/31/2014

April 7, 2014 10:00 am

Andy Hollis
(803) 898-4196

NO2 Infrastructure SIP

Notice of General Public Interest
Comment period: 2/28/14-3/31/2014

April 7, 2014 10:00 am

Tony Lofton
(803) 898-7217

Unless otherwise noted, the DHEC Bureau of Air Quality holds SIP public hearings in the Sims-Aycock Building, located at 2600 Bull St, Columbia, S.C.. Visitors must use the front (Bull St) entrance, sign in, and obtain a Visitor's Badge at the Front Desk.

The Central Midlands Regional Transit Authority offers public transportation to the DHEC Headquarters Building via its Route # 11/12. The Bureau of Air Quality also offers bike racks near the Bull St. Entrance.

Please check the DHEC Calendar of Events for other events related to Air Quality.

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