"
Johnston,
A.
Todd"
<
ajohnston@
nma.
org>

07/
17/
2006
07:
30
PM
T
o
Jason
Burnett/
DC/
USEPA/
US@
EPA
c
c
S
u
b
j
e
c
t
FW:
Coarse
PM
NAAQS
Jason
­
I
have
attached
a
legal
brief
concerning
EPA's
authority
to
exclude
certain
kinds
of
particles
and
sources
from
NAAQS
regulation.
A
"
one­
pager"
on
the
issue
is
also
attached.

Todd
Johnston
National
Mining
Association
