South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-62 - Air Pollution Control Regulations and Standards › Subchapter 61-62.5 - AIR POLLUTION CONTROL STANDARDS › STANDARD NO. 7 - PREVENTION OF SIGNIFICANT DETERIORATION

Current through Register Vol. 48, No. 6, June 28, 2024
(A)
(1)
[Reserved]
(2)
Applicability procedures.
(a) The requirements of this regulation apply
				to the construction of any new major stationary source (as defined in paragraph
				(B)(32)) or any project at an existing major stationary source in an area
				designated as attainment or unclassifiable under 40 Code of Federal Regulations
				(CFR) 81.341.
(b) The requirements
				of paragraphs (J) through (R) apply to the construction of any new major
				stationary source or the major modification of any existing major stationary
				source, except as this Section otherwise provides.
(c) No new major stationary source or major
				modification to which the requirements of paragraphs (J) through (R)(5) apply
				shall begin actual construction without a permit that states that the major
				stationary source or major modification will meet those requirements. The
				Department has authority to issue any such permit.
(d) The requirements of the program will be
				applied in accordance with the principles set out in paragraphs (A)(2)(d)(i)
				through (A)(2)(d)(vi).
(i) Except as
				otherwise provided in paragraph (A)(2)(e), and consistent with the definition
				of major modification contained in paragraph (B)(30), a project is a major
				modification for a regulated New Source Review (NSR) pollutant if it causes two
				types of emissions increases - a significant emissions increase (as defined in
				paragraph (B)(50)), and a significant net emissions increase (as defined in
				paragraphs (B)(34) and (B)(49)). The project is not a major modification if it
				does not cause a significant emissions increase. If the project causes a
				significant emissions increase, then the project is a major modification only
				if it also results in a significant net emissions increase.
(ii) The procedure for calculating (before
				beginning actual construction) whether a significant emissions increase (that
				is, the first step of the process) will occur depends upon the type of
				emissions units being modified, according to paragraphs (A)(2)(d)(iii) through
				(A)(2)(d)(vi). The procedure for calculating (before beginning actual
				construction) whether a significant net emissions increase will occur at the
				major stationary source (that is, the second step of the process) is contained
				in the definition in paragraph (B)(34). Regardless of any such preconstruction
				projections, a major modification results if the project causes a significant
				emissions increase and a significant net emissions increase.
(iii)
Actual-to-projected-actual
				applicability test for projects that only involve existing emissions units.
A significant emissions increase of a regulated NSR pollutant is
				projected to occur if the sum of the difference between the projected actual
				emissions (as defined in paragraph (B)(41)) and the baseline actual emissions
				(as defined in paragraphs (B)(4)(a) and (B)(4)(b)), for each existing emissions
				unit, equals or exceeds the significant amount for that pollutant (as defined
				in paragraph (B)(49)).
(iv)
Actual-to-potential test for projects that only involve construction of a
				new emissions unit(s).
A significant emissions increase of a regulated
				NSR pollutant is projected to occur if the sum of the difference between the
				potential to emit (as defined in paragraph (B)(37)) from each new emissions
				unit following completion of the project and the baseline actual emissions (as
				defined in paragraph (B)(4)(c)) of these units before the project equals or
				exceeds the significant amount for that pollutant (as defined in paragraph
				(B)(49)).
(v)
[Reserved]
(vi)
Hybrid test for projects that involve multiple types of emissions units.
Hybrid test for projects that involve multiple types of emissions units.
				A significant emissions increase of a regulated NSR pollutant is projected to
				occur if the sum of the difference for all emissions units, using the method
				specified in paragraphs (A)(2)(d)(iii) and (A)(2)(d)(iv) as applicable with
				respect to each emissions unit, equals or exceeds the significant amount for
				that pollutant (as defined in paragraph (B)(49)).
(vii) The "sum of the difference" as used in
				paragraphs (A)(2)(d)(iii), (A)(2)(d)(iv), and (A)(2)(d)(vi) of this Section
				shall include both increases and decreases in emissions calculated in
				accordance with those paragraphs.
(e) For any major stationary source with a
				Plantwide Applicability Limitation (PAL) for a regulated NSR pollutant, the
				major stationary source shall comply with the requirements under Section
				(AA).