Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › AIR DIVISION - AIR POLLUTION CONTROL PROGRAM › Chapter 335-3-14 - AIR PERMITS › Section 335-3-14-.04 - Air Permits Authorizing Construction In Clean Air Areas [Prevention Of Significant Deterioration Permitting (PSD)]

Current through Register Vol. 42, No. 9, June 28, 2024
(1)
Applicability
.
(a) The requirements of this Rule apply to
				the construction of any new major stationary source (as defined in subparagraph
				(2)(a) of this Rule) or any project at an existing major stationary source in
				an area designated as attainment or unclassifiable under sections
				107(d)(1)(A)(ii) or (iii) of the Clean Air Act.
(b) The requirements of paragraphs (9)
				through (17) of this Rule apply to the construction of any new major stationary
				source or the major modification of any existing major stationary source,
				except as this Rule otherwise provides.
(c) No new major stationary source or major
				modification to which the requirements of paragraphs (9) through (17)(c) of
				this Rule apply shall begin construction without a permit that states that the
				major stationary source or major modification will meet those
				requirements.
(d) Except as
				otherwise provided in subparagraph (1)(j) of this Rule, and consistent with the
				definition of major modification contained in subparagraph (2)(b) of this Rule,
				a project is a major modification for a regulated NSR pollutant only if it
				causes two types of emissions increases - a significant emissions increase [as
				defined in subparagraph (2)(mm) of this Rule], and a significant net emissions
				increase [as defined in subparagraphs (2)(c) and (2)(w) of this
				Rule].
(e) Before beginning actual
				construction, the procedure for calculating whether a significant emissions
				increase will occur depends upon the type of emissions units being modified,
				according to subparagraphs (1)(f) through (i) of this Rule. The procedure for
				calculating whether a significant net emissions increase will occur at the
				major stationary source is contained in the definition in subparagraph (2)(c)
				of this Rule. Regardless of any such preconstruction projections, a major
				modification can result only if the project causes a significant emissions
				increase and a significant net emissions increase.
(f)
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(s) between the
				projected actual emissions [as defined in subparagraph (2)(nn) of this Rule]
				and the baseline actual emissions [as defined in subparagraphs (2)(uu)1. and 2.
				of this Rule], for each existing emissions unit, equals or exceeds the
				significant rate for that pollutant [as defined in subparagraph (2)(w) of this
				Rule].
(g)
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 subparagraph (2)(d) of
				this Rule] from each new emissions unit following completion of the project and
				the baseline actual emissions [as defined in subparagraph (2)(uu)3. of this
				Rule] of these units before the project equals or exceeds the significant rate
				for that pollutant [as defined in subparagraph (2)(w) of this Rule].
(h)
Actual-to-potential 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(s) between the potential to emit [as defined in
				subparagraph (2)(d) of this Rule] and the actual emissions [as defined in
				subparagraph (2)(u) of this Rule], for each existing emissions unit, equals or
				exceeds the significant rate for that pollutant [as defined in subparagraph
				(2)(w) of this Rule].
(i)
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 emissions increases for each
				emissions unit, using the method specified in subparagraphs (1)(f) through (h)
				of this Rule as applicable with respect to each emissions unit, for each type
				of emissions unit equals or exceeds the significant rate for that pollutant [as
				defined in subparagraph (2)(w) of this Rule].
(j) Any major stationary source subject to a
				plantwide applicability limit (PAL), as defined in subparagraph (23)(b)5. of
				this rule, for a regulated NSR pollutant shall comply with the requirements
				under paragraph (23) of this Rule.
(k)
Greenhouse gases
				(GHGs)
1. GHGs, as defined in
				Subparagraph (2)(zz) of this Rule, shall not be utilized in determining if a
				source is a major stationary source, as defined in Subparagraph (2)(a) of this
				Rule, or in determining if a modification is a major modification, as defined
				in Subparagraph (2)(b) of this Rule.
2. GHGs shall only be subject to the
				requirements of this Rule if:
(i) A new major
				stationary source or major modification causes a significant emissions increase
				of GHGs, as defined in subparagraph (2)(mm) of this rule, and a significant net
				emissions increase of GHGs, as defined in subparagraphs (2)(c) and (2)(w) of
				this rule, and
(ii) The new major
				stationary source or major modification is required to obtain a permit subject
				to the requirements of this Rule as a result of emissions of regulated NSR
				pollutants other than GHGs.
3.
Reserved
.