Sec.  325.  (a)(1)  Upon  petition  by  the governor  of  Guam,
American Samoa, [the Virgin Islands,] or the Commonwealth of  the
Northern  Mariana  Islands, the  Administrator  is authorized  to
exempt  any person or  source or class  of persons or  sources in
such territory from  any requirement  under this  Act other  than
section  112 or  any  requirement under  section  110 or  part  D
necessary  to attain or  maintain a national  primary ambient air
quality  standard.   Such  exemption   may  be  granted   if  the
Administrator finds that compliance  with such requirement is not
feasible   or  is   unreasonable  due  to   unique  geographical,
meteorological, or  economic factors  of such territory,  or such
other local  factors as the Administrator  deems significant. Any
such petition shall be considered in
accordance  with  section 307(d)  and  any  exemption under  this
subsection shall be considered  final action by the Administrator
for the purposes of section 307(b).
  (2) The  Administrator shall promptly notify  the Committees on
Energy  and Commerce and on  Interior and Insular  Affairs of the
House of  Representatives and  the Committees on  Environment and
Public  Works and on Energy  and Natural Resources  of the Senate
upon receipt of  any petition  under this subsection  and of  the
approval or rejection  of such  petition and the  basis for  such
action.
  (b) Notwithstanding any other provision of this Act, any fossil
fuel fired steam electric power plant operating within Guam as of
the date of enactment of this section is hereby exempted from:
       (1)   any  requirement  of   the  new  source  performance
     standards  relating  to  sulfur  dioxide  promulgated  under
     section 111 as of such date of enactment; and
       (2) any regulation relating to sulfur dioxide standards or
     limitations   contained  in  a   State  implementation  plan
     approved under section  110 as  of such  date of  enactment:
     Provided, That such exemption  shall expire eighteen  months
     after  such  date  of  enactment  unless  the  Administrator
     determines  that   such  plant   is  making   all  emissions
     reductions  practicable   to  prevent  exceedances   of  the
     national ambient air quality standards for sulfur dioxide.
[42 U.S.C. 7625091]