of the Clean Air Act Amendments of 1990 shall continue to be an
existing unit for the purposes of this title. For the purposes of
this title, existing units shall not include simple combustion
turbines, or units which serve a generator with a nameplate
capacity of 25MWe or less.
"(9) The term `generator' means a device that produces
electricity and which is reported as a generating unit pursuant
to Department of Energy Form 860.
"(10) The term `new unit' means a unit that commences
commercial operation on or after the date of enactment of the
Clean Air Act Amendments of 1990.
"(11) The term `permitting authority' means the Administrator,
or the State or local air pollution control agency, with an
approved permitting program under part B of title III of the Act.
"(12) The term `repowering' means replacement of an existing
coal-fired boiler with one of the following clean coal
technologies: atmospheric or pressurized fluidized bed
combustion, integrated gasification combined cycle,
magnetohydrodynamics, direct and indirect coal-fired turbines,
integrated gasification fuel cells, or as determined by the
Administrator, in consultation with the Secretary of Energy, a
derivative of one or more of these technologies, and any other
technology capable of controlling multiple combustion emissions
simultaneously with improved boiler or generation efficiency and
with significantly greater waste reduction relative to the
performance of technology in widespread commercial use as of the
date of enactment of the Clean Air Act Amendments of 1990.
Notwithstanding the provisions of section 409(a), for the purpose
of this title, the term `repowering' shall also include any oil
and/or gas-fired unit which has been awarded clean coal
technology demonstration funding as of January 1, 1991, by the
Department of Energy.
"(13) The term `reserve' means any bank of allowances
established by the Administrator under this title.
"(14) The term `State' means one of the 48 contiguous States
and the District of Columbia.
"(15) The term `unit' means a fossil fuel-fired combustion
"(16) The term `actual 1985 emission rate', for electric
utility units means the annual sulfur dioxide or nitrogen oxides
emission rate in pounds per million Btu as reported in the NAPAP
Emissions Inventory, Version 2, National Utility Reference File.
For nonutility units, the term `actual 1985 emission rate' means
the annual sulfur dioxide or nitrogen oxides emission rate in
pounds per million Btu as reported in the NAPAP Emission
Inventory, Version 2.
"(17)(A) The term `utility unit' means-
"(i) a unit that serves a generator in any State that
produces electricity for sale, or
"(ii) a unit that, during 1985, served a generator in any
State that produced electricity for sale.
"(B) Notwithstanding subparagraph (A), a unit described in
subparagraph (A) that-
"(i) was in commercial operation during 1985, but
"(ii) did not, during 1985, serve a generator in any State
that produced electricity for sale shall not be a utility unit