,i  #aaf? ,,congress  #a/ ,session  ,h4 
,r4 #agb  ,,9 ,,! ,,h\se ,,(            
,,repres5tatives  ,janu>y #c1 #bjai,mr4 
,griffi? introduc$ ! foll[+ bill2 :i* 0 
ref]r$ to ! ,committee on ,en]gy &      
,comm]ce  ,a ,,bill  ,to am5d sections  
#aaa1 #afi1 & #aga ( ! ,clean ,air ,act 
to cl>ify :5 a physical *ange 91 or     
*ange 9 ! me?od ( op]ation (1 a /ation>y
 s\rce con/itutes a modification or     
con/ruction1 & = o!r purposes4  #a4     
,%ort title ,?is ,act may be cit$ z !   
,new ,s\rce ,review ,p]mitt+ ,improvem5t
 ,act ( #bjah4  #b4 ,cl>ification (     
def9ition ( a modification3 emission    
rate increases1 pollution control1      
effici5cy1 safety1 & reliability        
projects ,p>agraph 7#d7 ( section       
#aaa7;a7 ( ! ,clean ,air ,act 7#db      
,u4,s4,c4 #gdaa7;a77 is am5d$--  7#a7 by
 ins]t+ 7,a7 be=e ,! t]m2  7#b7 by      
ins]t+ be=e ! p]iod at ! end ! foll[+3 4
 ,= purposes ( ! prec$+ s5t5ce1 a *ange 
increases ! am\nt ( any air pollutant   
emitt$ by su* s\rce only if ! maximum   

h\rly emission rate ( an air pollutant t
 is a*ievable by su* s\rce aft] ! *ange 
is high] ?an ! maximum h\rly emission   
rate ( su* air pollutant t 0 a*ievable  
by su* s\rce dur+ any h\r 9 ! #aj-ye>   
p]iod imm$iately prec$+ ! *ange2 &  7#c7
 by add+ at ! end ! foll[+3  7,b7       
,not)/&+ subp>agraph 7,a71 ! t]m        
modification does n include a *ange at a
 /ation>y s\rce t is design$--  7i7 to  
r$uce ! am\nt ( any air pollutant emitt$
 by ! s\rce p] unit ( production2 or    
7ii7 to re/ore1 ma9ta91 or improve !    
reliability ( op]ations at1 or ! safety 
(1 ! s\rce1  except1 ) respect to ei!r  
clause 7i7 or 7ii71 :5 ! *ange w\ld be a
 modification z def9$ 9 subp>agraph 7,a7
 & ! ,adm9i/rator det]m9es t ! increase 
9 ! maximum a*ievable h\rly emission    
rate ( a pollutant f su* *ange w\ld     
cause an adv]se effect on human heal? or
 ! environm5t4  4  #c4 ,cl>ification (  
def9ition ( con/ruction = prev5tion (   
significant det]ioration ,subp>agraph   
7,c7 ( section #afi7b7 ( ! ,clean ,air  

,act 7#db ,u4,s4,c4 #gdgi7b77 is am5d$  
to read z foll[s3  7,c7 ,! t]m          
con/ruction1 :5 us$ 9 connection ) a    
major emitt+ facility1 includes a       
modification 7z def9$ 9 section         
#aaa7;a77 at su* facility1 except t =   
purposes ( ?is subp>agraph a            
modification does n include a *ange at a
 major emitt+ facility t does n result 9
 a significant emissions increase1 or a 
significant net emissions increase1 9   
annual actual emissions at su* facility4
  4  #d4 ,cl>ification ( def9ition (    
modifications & modifi$ = nonatta9m5t   
areas ,p>agraph 7#d7 ( section #aga ( ! 
,clean ,air ,act 7#db ,u4,s4,c4 #geja7  
is am5d$ to read z foll[s3  7#d7 ,! t]ms
 modifications & modifi$ mean a         
modification z def9$ 9 section          
#aaa7;a77#d71 except t su* t]ms d n     
include a *ange at a major emitt+       
facility t does n result 9 a significant
 emissions increase1 or a significant   
net emissions increase1 9 annual actual 
emissions at su* facility4  4  #e4 ,rule

 ( con/ruction ,no?+ 9 ?is ,act or !    
am5dm5ts made by ?is ,act %all be       
con/ru$ to treat any *ange z a          
modification = purposes ( any provision 
( ! ,clean ,air ,act 7#db ,u4,s4,c4     
#gdja et seq47 if su* *ange w\ld n h be5
 s treat$ z ( ! day be=e ! date (       
enactm5t ( ?is ,act4