Sec. 319. Not  later than one year after the  date of enactment
of the Clean  Air Act  Amendments of  1977 and  after notice  and
opportunity  for   public   hearing,  the   Administrator   shall
promulgate  regulations  establishing an  air  quality monitoring
system throughout the United States which- 
       (1) utilizes  uniform air quality monitoring  criteria and
     methodology  and measures  such air  quality according  to a
     uniform air quality index,
       (2) provides for air  quality monitoring stations in major
     urban  areas  and  other  appropriate areas  throughout  the
     United States to provide  monitoring such as will supplement
     (but not  duplicate) air  quality monitoring carried  out by
     the  States required  under  any  applicable  implementation
     plan,
       (3)  provides  for daily  analysis  and  reporting of  air
     quality based upon such uniform air quality index, and
       (4)  provides  for  recordkeeping  with  respect  to  such
     monitoring data  and for periodic analysis  and reporting to
     the general public by the Administrator  with respect to air
     quality based upon such data.
The  operation  of such  air  quality  monitoring  system may  be
carried out by  the Administrator or  by such other  departments,
agencies, or  entities of  the Federal Government  (including the
National Weather Service) as  the President may deem appropriate.
Any air  quality monitoring system required  under any applicable
implementation  plan   under  section  110  shall,   as  soon  as
practicable  following  promulgation  of regulations  under  this
section,  utilize  the  standard criteria  and  methodology,  and
measure air quality according  to the standard index, established
under such regulations.
[42 U.S.C. 7619]