35 Ill. Adm. Code 203.801
Offsetting by Alternative or Innovative Means
Section 203
Section 203.801 Offsetting
by Alternative or Innovative Means
A source may offset, by
alternative or innovative means, emission increases from rocket engine and
motor firing, and cleaning related to such firing, at an existing or modified
major source that tests rocket engines or motors under the following conditions:
a) Any modification proposed is solely for the purpose of
expanding the testing of rocket engines or motors at an existing source that is
permitted to test such engines on November 15, 1990;
b) The source demonstrates to the satisfaction of the Agency that
it has used all reasonable means to obtain and utilize offsets, as determined
on an annual basis, for the emissions increases beyond allowable levels, that
all available offsets are being used, and that sufficient offsets are not
available to the source;
c) The source has obtained a written finding from the Department
of Defense, Department of Transportation, National Aeronautics and Space
Administration or other appropriate Federal agency, that the testing of rocket
motors or engines at the facility is required for a program essential to the
national security; and
d) The source will comply with an alternative measure, imposed by
the Agency or Board, designed to offset any emission increases beyond permitted
levels not directly offset by the source.