Current through Register Vol. 48, No. 38, September 20, 2024
a)
The VOM emissions control period is the seasonal allotment period, which is
from May 1 through September 30, annually.
b) The reconciliation period is from October
1 to December 31, annually. During each reconciliation period, participating
sources and new participating sources shall:
1) Compile data of actual VOM emissions
during the immediately preceding seasonal allotment period; and
2) Submit its seasonal emissions component of
its Annual Emissions Report, in accordance with Section
205.300
of this Part.
c) At the
end of each reconciliation period, on and after the dates specified in Section
205.200 of
this Part, each participating source shall:
1) Hold ATUs in an amount not less than its
VOM emissions during the preceding seasonal allotment period, except as
provided in Sections
205.220,
205.225,
205.315,
205.316,
205.320(e)(3) or
(f) and
205.750 of
this Part; or
2) Except as provided
in subsection (f) of this Section, hold ATUs in an amount not less than
1.3 times its emissions
during the preceding seasonal allotment period that are attributable to a major
modification, if a participating source commences operation of a major
modification pursuant to 35 Ill. Adm. Code 203 on or after May 1, 1999.
Additionally, such source must hold ATUs in accordance with subsection (c)(1)
of this Section for VOM emissions during the preceding seasonal allotment
period that are not attributable to this major modification.
d) At the end of each
reconciliation period, beginning with the reconciliation period immediately
following the seasonal allotment period in which the source first becomes a new
participating source, as specified in Section
205.210
of this Part, each new participating source shall:
1) Except as provided in subsection (f) of
this Section, if the new participating source is a new major source pursuant to
35 Ill. Adm. Code 203, hold ATUs in an amount not less than
1.3 times its VOM
emissions during the preceding seasonal allotment period; or
2) If the new participating source is not a
new major source pursuant to 35 Ill. Adm. 203, hold ATUs in an amount not less
than its VOM emissions during the preceding seasonal allotment period, except
as provided in Sections 205.220, 205.225 and 205.750 of this Part.
e) Except as provided in
subsection (f) of this Section, any participating source that commences
operation of a major modification on or after May 1, 1999, or any new
participating source that is a new major source, which, at the end of each
reconciliation period, holds ATUs in an amount not less than
1.3 times the VOM
emissions during the preceding seasonal allotment period, in accordance with
subsection (c)(2) or (d)(1) of this Section, as applicable, shall be deemed to
have satisfied the VOM offset requirements of 35 Ill. Adm. Code
203.302(a),
203.602
and
203.701.
f)
Chicago area
classification
1)
If
the nonattainment classification of the Chicago area for ozone is changed such
that the required offset ratio is no longer
1.3 to 1 and a new
offset ratio applies, as specified in 35 Ill. Adm. Code 203.302, that ratio
shall then apply in lieu of the
1.3 to 1 ratio set
forth in subsections (c)(2), (d)(1), and (e) of this Section. Such new ratio
shall not apply to any part of a source or any modification already subject to
the
1.3 to 1 ratio or other
previously-effective offset ratio prior to the effective date of the new
ratio.
2) If the
Chicago area is designated as attainment for ozone, the
1.3 to 1 ratio set
forth in subsections (c)(2), (d)(1), and (e) of this Section or any new ratio
established pursuant to subsection (f)(1) of this Section shall cease to apply.
However, such ratio shall continue to apply to any part of a source or any
modification that is already subject to the ratio prior to such
designation.
