1E.
g.,
where
the
effective
date
of
designation
to
nonattainment
for
an
area
for
the
8­
hour
ozone
NAAQS
is
after
June
1,
2007
but
before
June
1,
2010,
the
baseline
inventory
will
be
for
calendar
year
2005.
8/
126/
05
From
RFP
/
baseline
issue
section
b.
Summary
of
Final
Rule
As
set
forth
in
our
proposed
rule,
for
areas
designated
nonattainment
for
the
8­
hour
ozone
NAAQS
with
an
effective
date
of
June
15,
2004,
we
are
requiring
States
to
use
the
2002
inventory
as
the
baseline
inventory
for
the
RFP
requirement.
As
noted
in
the
proposal,
the
inventory
for
the
2002
calendar
year
would
be
the
most
recently
available
inventory
at
the
time
of
designation
in
2004.
However,
in
response
to
several
comments,
we
are
allowing
States
the
option
of
justifying
the
use
of
an
alternative
baseline
inventory
year
for
RFP.
To
justify
an
alternative,
the
State
would
have
to
demonstrate
how
the
alternative
year
meets
the
CAA's
provisions
for
RFP
and
whyprovide
a
rationale
for
the
use
of
the
2002alternative
baseline
year
is
impracticable.
We
believe
that
for
multi­
state
nonattainment
areas,
the
several
States
must
agree
on
a
single
baseline.
The
baseline
emissions
inventory
is
calculated
as
of
the
effective
date
of
an
area's
nonattainment
designation
using
the
most
recent
calendar
year
for
which
a
complete
inventory
is
required
to
be
submitted
to
EPA
under
subpart
A
of
this
part.
Under
subpart
A,
States
are
required
to
submit
a
comprehensive
inventory
on
3­
year
cycles
within
17
months
after
the
close
of
the
reporting
period.
Thus,
the
2002
inventory
was
due
17
months
after
the
December
31,
2002
close
of
the
reporting
period,
i.
e.,
was
due
by
June
1,
2004.
For
those
areas
designated
nonattainment
for
the
8­
hour
ozone
NAAQS
effective
June
15,
2004
(
69
FR
23858,
April
30,
2004),
the
baseline
emissions
inventory
shall
be
based
on
the
calendar
year
2002
because
the
2002
inventory
was
due
under
subpart
A
of
this
part
prior
to
the
time
of
designation.
For
areas
with
an
effective
nonattainment
designation
in
the
future,
the
baseline
inventory
will
be
for
the
calendar
year
of
the
most
recent
triennial
inventory
as
of
the
date
of
designation.
1
