8/
18/
05
I.
Should
EPA
promulgate
a
NSR
provision
to
encourage
development
patterns
that
reduce
overall
emissions?
[
Section
O.
9.
of
the
June
2,
2003
proposed
rule
(
68
FR
32849).
No
draft
or
final
regulatory
text.]
Note:
Section
V
of
this
preamble
below
addresses
rules
for
NSR
for
the
8­
hour
ozone
standard.
This
section
addresses
only
the
June
2,
2003
proposal
related
to
Clean
Air
Development
Communities
(
CADC).
1.
Background
In
the
June
2,
2003
proposal,
we
considered
two
options
designed
to
recognize
the
air
quality
benefits
which
can
accrue
when
areas
site
new
sources
and
plan
development
in
a
manner
that
results
in
overall
reduced
emissions.
We
proposed
to
define
a
community
that
changes
its
development
patterns
in
such
a
way
that
air
emissions
within
the
nonattainment
area
are
demonstrably
reduced
as
a
CADC.
As
a
result
of
becoming
a
CADC,
an
area
would
obtain
a
certain
amount
of
flexibility
in
its
NSR
program.
In
the
first
option,
we
proposed
that
a
CADC
would
have
a
more
flexible
NSR
program
by:
1)
being
subject
to
subpart
1
NSR
as
opposed
to
subpart
2
NSR;
2)
lowering
NSR
major
source
thresholds
for
these
areas
to
make
them
similar
to
the
thresholds
for
PSD
areas;
and
3)
allowing
areas
that
meet
certain
development
criteria
(
development
zones)
to
receive
NSR
offsets
from
State
offset
pools.
In
the
second
option,
we
proposed
that
a
CADC
would
be
able
to
receive
a
pool
of
NSR
offset
credits
equal
to
the
reduced
emissions
from
new
development
patterns.
Credits
from
the
pool
could
be
provided
to
any
new
or
modified
source
in
a
"
development
zone"
as
offsets.
We
also
requested
comments
on
the
options
and
encouraged
comments
suggesting
other
ways
of
encouraging
development
patterns
that
would
result
in
lower
emissions.
2.
Summary
of
final
rule
The
EPA
is
not
at
this
time
issuing
any
rule
related
to
CADCs.
3.
Comments
and
Responses
Comments:
The
EPA
received
numerous
comments
on
the
proposal,
some
supporting
and
others
opposing
the
CADC
provision.
A
number
of
the
commenters
noted
that
the
proposal
did
not
appear
to
have
enough
detail.
A
summary
of
the
comments
appears
in
the
response
to
comment
document.
Response:
The
EPA
appreciates
the
many
comments
it
has
received
on
this
section.
The
EPA
agrees
with
a
number
of
commenters
that
while
the
ideas
in
this
section
are
interesting
and
designed
to
achieve
useful
goals,
much
more
work
is
needed
in
a
separate
effort
to
work
through
the
many
issues
involved.
Therefore,
EPA
will
not
move
forward
with
this
particular
effort
at
this
time.
However,
EPA
does
not
plan
to
ignore
the
issue.
The
EPA
will
be
looking
to
bring
a
group
of
stakeholders
together
to
see
if
the
group
can
come
up
with
and
support
one
or
more
ways
that
we
can
use
existing
programs
and
authorities
to
create
positive
incentives
and
tools
for
communities
to
reduce
sprawl.
The
process
will
not
be
designed
to
work
only
through
the
specific
issues
in
establishing
a
program
to
encourage
CADCs
as
outlined
in
the
proposal,
but
will
be
open
to
all
ideas.
Issues
related
to
community
development,
land
use
and
"
sprawl"
will
have
transportation
and
air
quality
implications.
Therefore,
EPA
will
work
closely
with
DOT
in
addressing
these
issues.
