Sec.  164. (a)  Except as  otherwise provided  under subsection
(c), a State may  redesignate such areas as it  deems appropriate
as class I areas. The following areas may be redesignated only as
class I or II:
       (1) an area which  exceeds ten thousand acres in  size and
     is  a  national  monument,  a  national  primitive  area,  a
     national preserve,  a national recreation  area, a  national
     wild  and  scenic  river,  a  national  wildlife  refuge,  a
     national lakeshore or seashore, and
       (2)   a   national  park   or  national   wilderness  area
     established  after the date  of enactment of  this Act which
     exceeds ten thousand acres in size.
The  extent of  the areas  referred to  in paragraph (1)  and (2)
shall  conform to  any changes  in the  boundaries of  such areas
which  have occurred subsequent to  the date of  the enactment of
the  Clean Air  Act  Amendments  of  1977,  or  which  may  occur
subsequent to  the date  of the enactment  of the  Clean Air  Act
Amendments of 1990.
Any  area (other than an area referred  to in paragraph(1) or (2)
or an  area established as  class I  under the first  sentence of
section 162(a)) may be redesignated by the State  as class III if
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       (A) such redesignation  has been specifically  approved by
     the  Governor  of the  State,  after  consultation with  the
     appropriate  Committees  of  the  legislature if  it  is  in
     session or with the  leadership of the legislature if  it is
     not  in  session  (unless   State  law  provides  that  such
     redesignation  must   be  specifically  approved   by  State
     legislation)  and   if  general   purpose  units   of  local
     government representing  a majority of the  residents of the
     area so redesignated  enact legislation (including for  such
     units of  local  government resolutions  where  appropriate)
     concurring in the State's redesignation;
       (B) such  redesignation will not cause,  or contribute to,
     concentrations of any air pollutant which exceed any maximum
     allowable  increase  or   maximum  allowable   concentration
     permitted under the classification of any other area; and
       (C) such redesignation otherwise meets the requirements of
     this part.
Subparagraph  (A)  of this  paragraph  shall  not apply  to  area
redesignations by Indian tribes.
  (b)(1)(A) Prior  to redesignation of any area  under this part,
notice shall be afforded  and public hearings shall be  conducted
in areas proposed  to be redesignated  and in areas which  may be
affected by the proposed redesignation. Prior  to any such public
hearing a  satisfactory description  and analysis of  the health,
environmental,  economic,  social,  and  energy  effects  of  the
proposed redesignation  shall be prepared and  made available for
public  inspection  and  prior  to any  such  redesignation,  the
description  and analysis of  such effects shall  be reviewed and
examined by the redesignating authorities.
  (B) Prior  to the  issuance of  notice  under subparagraph  (A)
respecting the  redesignation of any area  under this subsection,
if  such area includes any Federal lands, the State shall provide
written notice to the appropriate Federal land manager and afford
adequate opportunity (but  not in  excess of 60  days) to  confer
with the  State respecting  the intended notice  of redesignation
and to  submit written comments and  recommendations with respect
to such  intended notice  of redesignation. In  redesignating any
area  under this section with  respect to which  any Federal land
manager has submitted  written comments and recommendations,  the
State  shall publish  a list  of any  inconsistency between  such
redesignation and such recommendations and an explanation of such
inconsistency  (together   with  the  reasons  for   making  such
redesignation  against the  recommendation  of the  Federal  land
manager).
  (C)  The Administrator  shall promulgate regulations  not later
than six months after date of enactment of  this part, to assure,
insofar as  practicable,  that prior  to  any public  hearing  on
redesignation of any  area, there shall  be available for  public
inspection  any specific  plans  for any  new  or modified  major
emitting  facility which may  be permitted to  be constructed and
operated  only   if  the  area  in  question   is  designated  or
redesignated as class III.
  (2) The  Administrator may disapprove the  redesignation of any
area  only if he finds,  after notice and  opportunity for public
hearing,  that such  redesignation does  not meet  the procedural
requirements of this section or is inconsistent with the require-
ments of section 162(a) or of subsection (a)  of this section. If
any such disapproval occurs, the classification of the area shall
be  that which was in effect prior to the redesignation which was
disapproved.
  (c)  Lands within  the exterior  boundaries of  reservations of
federally recognized  Indian tribes  may be redesignated  only by
the appropriate Indian governing body. Such Indian governing body
shall be subject in  all respect to the provisions  of subsection
(e).
  (d) The Federal  Land Manager shall  review all national  monu-
ments,  primitive  areas,  and  national   preserves,  and  shall
recommend  any appropriate  areas  for redesignation  as class  I
where air quality related values are important attributes of  the
area. The Federal Land Manager shall report such recommendations,
within  supporting analysis,  to  the Congress  and the  affected
States  within  one year  after  enactment of  this  section. The
Federal Land  Manager shall  consult with the  appropriate States
before making such recommendations.
  (e) If any  State affected by the redesignation  of any area by
an Indian tribe or any Indian tribe affected by the redesignation
of an area by  a State disagrees with  such redesignation of  any
area, or if a permit  is proposed to be issued for any  new major
emitting facility  proposed for  construction in any  State which
the  Governor  of  an affected  State  or  governing  body of  an
affected Indian tribe  determines will cause  or contribute to  a
cumulative change in  air quality  in excess of  that allowed  in
this  part within the  affected State or  tribal reservation, the
Governor  or Indian ruling body  may request the Administrator to
enter into negotiations with the parties involved to resolve such
dispute.  If requested by any State or Indian tribe involved, the
Administrator shall make a  recommendation to resolve the dispute
and protect the air quality related values of the lands involved.
If the parties involved do not reach agreement, the Administrator
shall resolve the dispute  and his determination, or  the results
of  agreements reached through other means,  shall become part of
the  applicable plan  and shall  be enforceable  as part  of such
plan. In resolving such  disputes relating to area redesignation,
the Administrator  shall consider the  extent to which  the lands
involved  are of sufficient  size to allow  effective air quality
management or have air quality related values of such an area.
[42 U.S.C. 7474]