Section 52.2131 - Significant deterioration of air quality(c) All applications and other information required pursuant to § 52.21 from sources located in the State of South Carolina shall be submitted to the State agency, South Carolina Department of Health and Environmental Control, 2600 Bull Street, Columbia, South Carolina 29201, rather than to EPA's Region 4 office.42 FR 4124, Jan. 24, 1977, as amended at 47 FR 6018, Feb. 10, 1982; 74 FR 55143 , Oct. 27, 2009