,,ii  #aai? ,,congress  #a/ ,session    
,s4 #cebi  ,,9 ,,! ,,s5ate ,,( ,,!      
,,unit$ ,,/ates  ,decemb] #ag1 #bjbe,ms4
 ,blunt ,ro*e/] 7= h]self1 ,ms4         
,duckwor?1 ,mr4 ,durb91 ,mr4 ,m>key1    
,mr4 ,m]kley1 ,mr4 ,van ,holl51 & ,mr4  
,padilla7 introduc$ ! foll[+ bill2 :i* 0
 read twice & ref]r$ to ! ,committee on 
,environm5t & ,public ,works  ,a ,,bill 
,to protect clean air & public heal? by 
exp&+ f5cel9e & ambi5t air monitor+ &   
access to air quality in=mation =       
communities affect$ by air pollution1 to
 require haz>d\s air pollutant monitor+ 
at ! f5cel9e ( facilities ^: emissions  
are l9k$ to local heal? ?reats1 to      
ensure ! ,environm5tal ,protection      
,ag5cy promulgates rules t require      
haz>d\s air pollutant data measurem5t & 
electronic submission at f5cel9es &     
/acks ( indu/rial s\rce categories1 to  
exp& & /r5g!n ! national ambi5t air     
quality monitor+ network1 to deploy air 
quality sy/ems 9 communities affect$ by 
air pollution1 & = o!r purposes4  #a4   

,%ort title ,?is ,act may be cit$ z !   
,public ,heal? ,air ,quality ,act (     
#bjbe4  #b4 ,def9itions ,9 ?is ,act3    
7#a7 ,accid5tal release ,! t]m accid5tal
 release has ! mean+ giv5 ! t]m 9       
section #aab7r77#b7 ( ! ,clean ,air ,act
 7#db ,u4,s4,c4 #gdab7r77#b774  7#b7    
,adm9i/rator ,! t]m ,adm9i/rator means !
 ,adm9i/rator ( ! ,environm5tal         
,protection ,ag5cy4  7#c7 ,air quality  
sy/em ,! t]m air quality sy/em means an 
air quality s5sor or set ( s5sors       
in/all$ toge!r ) in/rum5ts to measure   
meteorology & /ore & transmit data4     
7#d7 ,area s\rce2 haz>d\s air pollutant2
 major s\rce2 new s\rce2 /ation>y s\rce 
,except z o!rwise provid$1 ! t]ms area  
s\rce1 haz>d\s air pollutant1 major     
s\rce1 new s\rce1 & /ation>y s\rce h !  
mean+s giv5 ^? t]ms 9 section #aab7;a7 (
 ! ,clean ,air ,act 7#db ,u4,s4,c4      
#gdab7;a774  7#e7 ,cumulative impact ,! 
t]m cumulative impact means ! totality (
 exposures to comb9ations ( *emical &   
non*emical /ressors1 & ! effects ( ^?   

exposures on heal?1 well-be+1 & quality 
( life outcomes4  7#f7 ,cumulative risk 
,! t]m cumulative risk means ! comb9$   
risks to heal? or ! environm5t f        
multiple ag5ts or /ressors4  7#g7       
,emissions measurem5t sy/em ,! t]m      
emissions measurem5t sy/em means a set (
 monitors1 te/+ equipm5t1 tools1 &      
processes employ$ at a facility to      
measure emissions f direct & fugitive   
po9ts at a s\rce or facility or at !    
f5cel9e ( ! s\rce or facility t employs 
,environm5tal ,protection ,ag5cy-approv$
 or promulgat$ te/ me?ods = all measur$ 
pollutants = :i* a me?od is available4  
7#h7 ,f$]al equival5t me?od2 ,f$]al     
ref]5ce me?od ,! t]ms ,f$]al equival5t  
me?od & ,f$]al ref]5ce me?od h ! mean+s 
giv5 ^? t]ms 9 section #ec4a ( title    
#dj1 ,code ( ,f$]al ,regulations 7or to 
! same or sub/antially simil> t]ms 9    
successor regulations74  7#i7 ,me?od    
#cbe;,a ,! t]m ,me?od #cbe;,a means !   
mo/ curr5t v]sion ( ! te/ me?od #cbe;,a 
publi%$ by ! ,environm5tal ,protection  

,ag5cy4  7#aj7 ,me?od #cbe;,b ,! t]m    
,me?od #cbe;,b means ! mo/ curr5t v]sion
 ( ! te/ me?od #cbe;,b publi%$ by !     
,environm5tal ,protection ,ag5cy4  7#aa7
 ,,me?od #cbg ,! t]m ,me?od #cbg means !
 mo/ curr5t v]sion ( ! te/ me?od #cbg   
publi%$ by ! ,environm5tal ,protection  
,ag5cy4  7#ab7 ,me?od ,,to-#ae;,a ,! t]m
 ,me?od ,,to-#ae;,a means ! mo/ curr5t  
v]sion ( ! te/ me?od ,,to-#ae 7includ+  
,,to-#ae;,a7 publi%$ by ! ,environm5tal 
,protection ,ag5cy4  7#ac7 ,national    
,air ,toxics ,tr5ds ,network ,! t]m     
,national ,air ,toxics ,tr5ds ,network  
means ! long-t]m haz>d\s air pollutants 
monitor+ data network e/abli%$ by !     
,environm5tal ,protection ,ag5cy to     
assess tr5ds & emissions r$uction       
program effectiv5ess4  7#ad7 ,national  
ambi5t air quality /&>d ,! t]m national 
ambi5t air quality /&>d means a national
 ambi5t air quality /&>d e/abli%$ "u    
section #aji ( ! ,clean ,air ,act 7#db  
,u4,s4,c4 #gdji74  7#ae7 ,n,core ,! t]m 
,n,core has ! mean+ giv5 ! t]m 9 section

 #eh4a ( title #dj1 ,code ( ,f$]al      
,regulations 7z 9 effect on ! date (    
enactm5t ( ?is ,act74  7#af7 ,(fice (   
,rese>* & ,developm5t ,! t]m ,(fice (   
,rese>* & ,developm5t means ! ,(fice (  
,rese>* & ,developm5t ( ! ,environm5tal 
,protection ,ag5cy4  7#ag7 ,,pfas t]ms  
,! t]ms p]fluoroalkyl sub/ance &        
polyfluoroalkyl sub/ance h ! mean+s giv5
 ^? t]ms 9 section #gcca7b77;,b7 ( !    
,,pfas ,act ( #bjai 7#ae ,u4,s4,c4      
#hica7b77;,b774  7#ah7 ,real-"t ,! t]m  
real-"t means ! actual or ne> actual "t 
dur+ :i* pollutant levels occur at or   
ne> ! prop]ty b\nd>y ( a facility or 9 a
 ne>by community4  7#ai7 ,s\rce ,! t]m  
s\rce is )9 ! mean+ ( ! ,clean ,air ,act
 7#db ,u4,s4,c4 #gdja et seq474  7#bj7  
,te/ me?od ,! t]m te/ me?od means a     
me?od describ$ 9 ! mo/ rec5t docum5t ( !
 ,environm5tal ,protection ,ag5cy       
entitl$ ,comp5dium ( ,me?ods = !        
,det]m9ation ( ,toxic ,organic ,comp\nds
 9 ,ambi5t ,air4  #c4 ,heal? em]g5cy air
 toxics monitor+ network  7a7 ,monitor+ 

7#a7 ,9 g5]al ,n lat] ?an #ah mon?s aft]
 ! date ( enactm5t ( ?is ,act1 !        
,adm9i/rator %all publi% notice 9 !     
,f$]al ,regi/] (1 take public comm5t = a
 p]iod ( n less ?an #fj days reg>d+1 &  
take f9al action to design & laun* a    
plan & implem5t a program to adm9i/] or 
conduct1 pursuant to au?ority provid$ "u
 ! ,clean ,air ,act 7#db ,u4,s4,c4 #gdja
 et seq471 includ+ sections #ajc1 #aab1 
#aac1 #aad1 & #cjc ( t ,act 7#db        
,u4,s4,c4 #gdjc1 #gdab1 #gdac1 #gdad1   
#gfjc71 emissions measurem5t &          
quantification1 includ+ ! be/ available 
=m ( f5cel9e monitor+ ( /ation>y s\rces 
( haz>d\s air pollutants t are on ! li/ 
develop$ "u subsection 7c71 includ+     
?r\gh expansion ( ! ,national ,air      
,toxics ,tr5ds ,network or ?r\gh creat+ 
a new network1 z appropriate4  7#b7     
,monitor+ p]iod  7,a7 ,9 g5]al ,!       
,adm9i/rator %all ensure monitor+ beg9s 
pursuant to ?is section n lat] ?an #ah  
mon?s aft] ! date ( enactm5t ( ?is ,act 
& %all ma9ta9 ! monitor+ requir$ "u     

p>agraph 7#a7 = a p]iod ( n less ?an #f 
ye>s aft] ! date on :i* ! monitor+      
requir$ "u t p>agraph beg9s4  7,b7      
,subsequ5t monitor+ ,aft] ! #f-ye> p]iod
 describ$ 9 subp>agraph 7,a71 !         
,adm9i/rator %all ma9ta9 ! emissions    
measurem5t & quantification program "u  
p>agraph 7#a71 consi/5t ) ?is section1  
?r\gh-- 7i7 ma9ta9+ monitors at all or  
"s s\rces "u ! program "u p>agraph 7#a72
 &  7ii7 add+ or mov+ monitors "u !     
program "u p>agraph 7#a7 to additional  
s\rces1 foll[+ ! process = sub/itution (
 s\rces 9 subsection 7g74  7,c7 ,%ort5$ 
p]iod ,if ! ,adm9i/rator det]m9es1 aft] 
public notice & a public comm5t p]iod ( 
n less ?an #fj days1 t #f ye>s (        
monitor+1 z requir$ "u subp>agraph 7,a71
 is n necess>y to protect public heal?  
or ensure compliance at ! s\rce or !    
facility involv$1 ! ,adm9i/rator may    
r$uce or end ! monitor+ aft] at lea/ #c 
ye>s ( monitor+ has occurr$4  7,d7      
,additional inspections & te/+ ,9       
addition to f5cel9e monitor+ "u !       

program "u p>agraph 7#a71 ! ,adm9i/rator
 %all use ! au?ority ( ! ,adm9i/rator to
 inspect & require emission te/+ at     
s\rces on ! li/ publi%$ pursuant to     
subsection 7c7 to ! ext5t necess>y to   
id5tify & address ! emissions cross+ !  
f5cel9e4  7b7 ,publication ( results    
7#a7 ,9 g5]al ,! ,adm9i/rator %all      
publi% & ma9ta9 ! plans = & ! results ( 
all measurem5ts1 includ+ f5cel9e        
monitor+1 conduct$ "u ! program "u      
subsection 7a77#a7 on ! website ( !     
,environm5tal ,protection ,ag5cy-- 7,a7 
9 a highly accessible =mat2  7,b7 9 a   
c5traliz$ database ma9ta9$ 9 multiple   
languages2 &  7,c7 = a p]iod ( at lea/  
#aj ye>s4  7#b7 ,imm$iate availability  
,! ,adm9i/rator %all ensure t ! monitor+
 data collect$ "u ! program "u          
subsection 7a77#a7 are-- 7,a7           
electronically submitt$ to !            
,adm9i/rator n lat] ?an #a mon? aft] !  
date ( collection ( ! data2 &  7,b7 made
 publicly available z exp$iti\sly z     
practicable1 b 9 any case n lat] ?an #g 

days aft] ! electronic submission ( !   
data4  7c7 ,li/ ( s\rces  7#a7          
,developm5t  7,a7 ,9 g5]al ,n lat] ?an  
#bgj days aft] ! date ( enactm5t ( ?is  
,act1 ! ,adm9i/rator %all publi%1 aft]  
public notice & a public comm5t p]iod ( 
n less ?an #fj days1 a li/ ( /ation>y   
s\rces ( haz>d\s air pollutants t1      
subject to subp>agraph 7,b7 d n already 
h f5cel9e monitor+ 9 op]ation t is      
produc+ publicly available data &       
includes-- 7i7 at lea/ #de ( ! s\rces   
li/$-- 7,i7 z high-priority facilities 9
 ,app5dix ,a ( ! report ( ! ,(fice (    
,inspector ,g5]al ( ! ,environm5tal     
,protection ,ag5cy numb]$ #bj-,n-#jabh &
 dat$ ,m>* #ca1 #bjbj2 or  7,,ii7 z     
contribut+ to high canc] risk at ! c5sus
 block level 9 ,app5dix ,c ( ! report ( 
! ,(fice ( ,inspector ,g5]al ( !        
,environm5tal ,protection ,ag5cy numb]$ 
#ba-,p-#jabi & dat$ ,may #f1 #bjba2 &   
7ii7 at lea/ #ee o!r major s\rces or    
area s\rces t meet ! crit]ia describ$ 9 
p>agraph 7#b74  7,b7 ,sub/itution  7i7  

,9 g5]al ,if ! ,adm9i/rator det]m9es1   
aft] public notice & a public comm5t    
p]iod ( n less ?an #fj days1 t a s\rce  
describ$ 9 subp>agraph 7,a77i7 no long] 
contributes to high heal? risks or      
impacts t w>rant cont9u$ monitor+ to    
advance public heal? protection1 in=m   
improv$ compliance1 or improve available
 data quality1 ! ,adm9i/rator %all--    
7,i7 cease to include t s\rce 9 ! li/ "u
 subp>agraph 7,a72 &  7,,ii7 include    
in/ead an additional major s\rce or area
 s\rce describ$ 9 subp>agraph 7,a77ii7  
to ensure t ! li/ "u subp>agraph 7,a7   
includes n few] ?an #ajj high-priority  
s\rces4  7ii7 ,description ( reasons ,= 
! purpose ( provid+ notice1 !           
,adm9i/rator %all publi% 9 ! ,f$]al     
,regi/]1 & seek public comm5t = a p]iod 
( n less ?an #fj days ) respect to--    
7,i7 any det]m9ation to make a          
sub/itution "u clause 7i72 &  7,,ii7 an 
explanation ( ! reasons = any su*       
det]m9ation demon/rat+1 bas$ on monitor+
 data or o!r reliable in=mation1 t !    

sub/itution is likely to ensure t       
monitor+ "u ?is section occurs at !     
s\rces caus+ or contribut+ to ! highe/  
pot5tial heal? risks or o!r impacts f   
haz>d\s air pollution4  7iii7           
,requirem5t ,! ,adm9i/rator may include 
an additional major s\rce or area s\rce 
"u clause 7i77,,ii7 only if !           
,adm9i/rator det]m9es t ! s\rce is1 or  
is likely to be1 contribut+ local heal? 
risks or impacts t are equival5t to1 or 
great] ?an1 ^? ( ! s\rce = :i* ! new    
s\rce is be+ sub/itut$4  7#b7 ,crit]ia  
,! ,adm9i/rator may include a major     
s\rce or area s\rce describ$ 9 clause   
7ii7 ( p>agraph 7#a77;,a7 on ! li/      
describ$ 9 t p>agraph only if ! s\rce-- 
7,a7 emits at lea/ #a ( ! pollutants    
describ$ 9 p>agraph 7#c72  7,b7 is-- 7i7
 locat$ 91 or )9 #c miles (1 a c5sus    
tract )-- 7,i7 a canc] risk ( at lea/   
#ajj-;9-#a1jjj1jjj2 or  7,,ii7 a *ronic 
noncanc] haz>d index t is great] ?an or 
equal to #a2 or  7ii7 9 a s\rce category
 )-- 7,i7 a canc] risk t is great] ?an  

#ajj-;9-#a1jjj1jjj = ! individual mo/   
expos$ to emissions f ! s\rce category2 
7,,ii7 a total organ-specific haz>d     
index = *ronic noncanc] risk t is great]
 ?an or equal to #a2 or  7,,iii7 an     
acute risk haz>d quoti5t t is great] ?an
 or equal to #a2 &  7,c7 7i7 is         
classifi$ 9 #a or m ( ,nor? ,am]ican    
,indu/ry ,classification ,sy/em codes   
#cbb1 #cbd1 #cbe1 #cbf1 #cca1 #ccb1     
#cci1 #dbd1 & #efb2  7ii7 7,i7 is       
requir$ to prep>e & implem5t a risk     
managem5t plan pursuant to section      
#aab7r7 ( ! ,clean ,air ,act 7#db       
,u4,s4,c4 #gdab7r772 &  7,,ii7 has _h an
 accid5tal release requir$ to be report$
 dur+ ! previ\s #e-ye> p]iod pursuant to
 sections #fh4db & #fh4aie ( title #dj1 
,code ( ,f$]al ,regulations 7z 9 effect 
on ! date ( enactm5t ( ?is ,act72 or    
7iii7 is det]m9$ by ! ,adm9i/rator to be
 a high-priority s\rce or facility =    
emissions measurem5t because-- 7,i7 !   
facility is locat$ )9 #cej feet ( a     
resid5ce1 s*ool1 *ildc>e facility       

7includ+ a camp71 hospital1 p>k1 sports 
or recreation facility1 or o!r ga!r+    
place1 community c5t]1 or in/itution :]e
 *ildr5 & families regul>ly sp5d "t2 or 
7,,ii7 bas$ on ! be/ available sci5ce1 !
 emissions ( ! s\rce or facility are    
likely caus+ or contribut+ to1 or h !   
pot5tial to cause or contribute to1     
s]i\s acute or *ronic1 includ+ canc] &  
non-canc]1 heal? or safety risks or     
impacts1 includ+ adv]se neurological1   
developm5tal1 or o!r heal? impacts 9    
ut]o or *ildhood4  7#c7 ,pollutants ,!  
pollutants describ$ 9 ?is p>agraph are--
 7,a7 e?yl5e oxide1 ,,cas #gebah2  7,b7 
*loropr5e1 ,,cas #abfiih2  7,c7 b5z5e1  
,,cas #gadcb2  7,d7 #a1c-;butadi5e1     
,,cas #ajfiij2  7,e7 =maldehyde1 ,,cas  
#ejjjj2  7,f7 acetaldehyde1 ,,cas       
#gejgj2  7,g7 lead comp\nds2  7,h7      
ars5ic comp\nds2  7,i7 antimony         
comp\nds2  7,j7 cadmium comp\nds2  7,k7 
cobalt comp\nds2  7,l7 nickel comp\nds2 
7,m7 manganese comp\nds2  7,n7 v9yl     
*loride2  7,o7 e?yl5e di*loride2  7,p7  

naph?al5e2  7,q7 e?ylb5z5e2  7,r7 me?yl 
m]cury2  7,s7 epi*lorohydr92  7,t7      
xyl5es2  7,u7 acrylonitrile2  7,v7 any  
o!r haz>d\s air pollutant includ$ 9 !   
li/ describ$ 9 section #aab7;b7 ( !     
,clean ,air ,act 7#db ,u4,s4,c4         
#gdab7;b77 t ! ,adm9i/rator det]m9es1   
aft] public notice & a public comm5t    
p]iod ( n less ?an #fj days1 ! air      
emissions ( :i*-- 7i7 are1 or may be    
contribut+ to1 s]i\s heal? risks2 or    
7ii7 w>rant emissions quantification &  
measurem5t due to ! public int]e/ 9     
evaluat+ ! emissions & effects ( !      
pollutant2 &  7,w7 any pollutant or     
airborne *emical t is a precursor to    
atmosph]ic photo*emical production ( any
 o!r pollutant on ! li/ describ$ 9      
section #aab7;b7 ( ! ,clean ,air ,act   
7#db ,u4,s4,c4 #gdab7;b774  7#d7 ,use ( 
in=mation & me?ods ,9 c>ry+ out ?is     
subsection1 ! ,adm9i/rator %all-- 7,a7  
use-- 7i7 ! evaluations & me?ods ( !    
,environm5tal ,protection ,ag5cy =      
compil+ & evaluat+ in=mation ab\t risks 

f air toxics 9 effect on ,janu>y #a1    
#bjbe1 t h be5 pe] review$ by ! ,sci5ce 
,advisory ,bo>d1 includ+ *emical        
assessm5ts develop$ by ! ,integrat$     
,risk ,in=mation ,sy/em ( !             
,environm5tal ,protection ,ag5cy        
7commonly ref]r$ to z ,,iris71 or ! mo/ 
rec5t ,air ,toxics ,scre5+ ,assessm5t or
 o!r curr5t evaluation or report by !   
,environm5tal ,protection ,ag5cy1 act+  
?r\gh ! ,(fice ( ,rese>* & ,developm5t1 
provid+ simil> in=mation ab\t canc] &   
noncanc] risks f haz>d\s air pollution  
bas$ on measur$ or model$ emissions1 us+
 evaluations or me?ods t-- 7,i7 acc\nt  
=1 & !re=e demon/rate high] risks to1 ! 
individual or community mo/ expos$ to ! 
emissions2 &  7,,ii7 acc\nt = adv]se    
neurological1 developm5tal1 or o!r heal?
 impacts 9 ut]o1 9 *ildhood1 & 9        
adolesc5ce2  7ii7 ! ,risk-,scre5+       
,environm5tal ,indicators model ( !     
,adm9i/rator 9 effect z ( ,decemb] #ca1 
#bjbd2  7iii7 a prior heal? risk        
assessm5t t 0 p]=m$ by ! ,adm9i/rator = 

! applicable s\rce or s\rce category    
be=e ,janu>y #a1 #bjbe2 or  7iv7 a new  
heal? risk assessm5t p]=m$ by !         
,adm9i/rator = ! applicable s\rce or    
s\rce category t-- 7,i7 is m complete & 
addresses m or great] risks ?an         
previ\sly consid]$2  7,,ii7 foll[s ! be/
 available sci5ce 7includ+ ! mo/ rec5t  
guidance f ! ,national ,academy (       
,sci5ces & ! mo/ rec5t assessm5ts "u !  
,integrat$ ,risk ,in=mation ,sy/em ( !  
,environm5tal ,protection ,ag5cy        
7commonly ref]r$ to z ,,iris7 t 7 creat$
 pursuant to ! docum5t ( ! ,environm5tal
 ,protection ,ag5cy entitl$ ,,ord ,/aff 
,h&book = ,develop+ ,,iris ,assessm5ts &
 dat$ ,decemb] #bjbb72 &  7,,iii7       
consid]s1 ) respect to ! applicable     
s\rce or facility-- 7aa7 cumulative     
risks & cumulative impacts2  7bb7       
increas$ vuln]ability t results f       
socioeconomic disp>ities2  7cc7 multiple
 s\rce exposure2 &  7dd7 exposure 9     
ut]o1 9 *ildhood1 9 adolesc5ce1 & ?r\gh 
! age ( #he2 &  7,b7 consid]-- 7i7 ! mo/

 rec5t emission te/s available to !     
,adm9i/rator or receiv$ by !            
,environm5tal ,protection ,ag5cy 9      
public comm5t2 &  7ii7 any f5cel9e or   
ambi5t monitor+ data = :i* an           
,environm5tal ,protection ,ag5cy-approv$
 data quality *eck has be5 p]=m$4  7d7  
,me?ods & te*nologies  7#a7 ,9 g5]al    
,except z provid$ 9 p>agraph 7#c71 9    
c>ry+ out ! program "u subsection       
7a77#a71 ! ,adm9i/rator %all1 = ea*     
/ation>y s\rce on ! li/ publi%$ "u      
subsection 7c77#a71 employ an emissions 
measurem5t sy/em to monitor ! pollutants
 describ$ 9 subsection 7c77#c7 emitt$ by
 ! /ation>y s\rce1 includ+ at lea/--    
7,a7 ! mo/ curr5t ,environm5tal         
,protection ,ag5cy-approv$ or promulgat$
 emission te/ or monitor+ me?od1 includ+
 ,me?od #cbe;,a1 ,me?od #cbe;,b1 ,me?od 
,,to-#ae;,a1 & ,me?od #cbg1 t exp&s !   
scope1 /r5g!ns ! detection limit1 or    
o!rwise improves ! effectiv5ess ( ! te/ 
me?od2 or  7,b7 = ea* /ation>y s\rce    
describ$ 9 p>agraph 7#b71 ! be/         

available me?od = cont9u\s1 real-"t     
measurem5t ( air pollutant              
conc5trations4  7#b7 ,/ation>y s\rces   
describ$ ,a /ation>y s\rce ref]r$ to 9  
p>agraph 7#a77;,b7 is-- 7,a7 n less ?an 
ea* ( ! #bj /ation>y s\rces on ! li/    
publi%$ "u subsection 7c77#a7 t-- 7i7   
emits ! greate/ quantity or rate (      
pollutants describ$ 9 subsection        
7c77#c72 or  7ii7 causes ! greate/ heal?
 risk to ! greate/ numb] ( p1 bas$ on ! 
emissions ( ! pollutants describ$ 9     
subsection 7c77#c7 individually1 z a    
gr\p1 or cumulatively1 bas$ on-- 7,i7   
7aa7 ! late/ evaluations & me?ods ( !   
,environm5tal ,protection ,ag5cy =      
compil+ & evaluat+ in=mation ab\t risks 
f air toxics1 or ! mo/ rec5t ,air       
,toxics ,scre5+ ,assessm5t or o!r curr5t
 evaluation or report by ! ,environm5tal
 ,protection ,ag5cy provid+ simil>      
in=mation ab\t canc] & noncanc] risks f 
haz>d\s air pollution bas$ on measur$ or
 model$ emissions2  7bb7 ! ,risk-,scre5+
 ,environm5tal ,indicators model ( !    

,adm9i/rator2  7cc7 a prior heal? risk  
assessm5t t 0 p]=m$ by ! ,adm9i/rator = 
! applicable s\rce or s\rce category2 or
  7dd7 a new heal? risk assessm5t p]=m$ 
by ! ,adm9i/rator t-- 7,,aa7 foll[s !   
be/ available sci5ce 7includ+ ! mo/     
rec5t guidance f ! ,national ,academy ( 
,sci5ces72 & 7,,bb7 consid]s1 ) respect 
to ! applicable s\rce or facility1      
cumulative risks & impacts1 increas$    
vuln]ability t results f socioeconomic  
disp>ities1 multiple s\rce exposure1 &  
exposure 9 ut]o1 9 *ildhood1 9          
adolesc5ce1 & ov] ! c\rse ( a lifetime  
?r\gh ! age ( #he2 &  7,,ii7 ! mo/ rec5t
 emission te/s available to !           
,environm5tal ,protection ,ag5cy or     
receiv$ 9 public comm5t1 & any f5cel9e  
or ambi5t monitor+ data = :i* an        
,environm5tal ,protection ,ag5cy-approv$
 data quality *eck has be5 p]=m$2  7,b7 
any o!r /ation>y s\rce on ! li/ publi%$ 
"u subsection 7c77#a7 t-- 7i7 is        
regulat$ "u p>agraph 7#g7 ( section     
#aab7r7 ( ! ,clean ,air ,act 7#db       

,u4,s4,c4 #gdab7r772 &  7ii7 has _h an  
accid5tal release or incid5t t is       
requir$ to be report$ dur+ ! previ\s    
#e-ye> p]iod pursuant to sections #fh4db
 & #fh4aie ( title #dj1 ,code ( ,f$]al  
,regulations 7z 9 effect on ,janu>y #a1 
#bjbe71 "u t p>agraph2 &  7,c7 any o!r  
/ation>y s\rce on ! li/ publi%$ "u      
subsection 7c77#a7 = :i* application ( !
 me?ods describ$ 9 subp>agraph 7,a7     
alone may n be suffici5t-- 7i7 to       
monitor & report ! pollutants describ$ 9
 subsection 7c77#c7 t are emitt$ by t   
/ation>y s\rce2 or  7ii7 to advance     
public heal? & safety4  7#c7 ,updates   
7,a7 ,approv$ or promulgat$ me?ods ,!   
,adm9i/rator %all-- 7i7 n lat] ?an #b   
ye>s aft] ! date ( enactm5t ( ?is ,act1 
review &1 aft] public notice & a public 
comm5t p]iod ( n less ?an #fj days1     
update ea* approv$ or promulgat$ te/    
me?od describ$ 9 ?is section to add z _m
 ( ! pollutants describ$ 9 subsection   
7c77#c7 z practicable2 &  7ii7 o!rwise  
/r5g!n ! te/ me?ods describ$ 9 clause   

7i7 to support effective haz>d\s air    
pollutant measurem5t & ! full           
implem5tation ( ?is ,act4  7,b7 ,new te/
 me?ods  7i7 ,9 g5]al ,n lat] ?an #ah   
mon?s aft] ! date ( enactm5t ( ?is ,act1
 ! ,adm9i/rator %all1 aft] public notice
 & a public comm5t p]iod ( n less ?an   
#fj days1 approve or promulgate1 z      
applicable1 any new te/ me?ods t are    
necess>y to ensure effective f5cel9e    
monitor+ ( all pollutants & s\rces      
describ$ 9 ?is section1 includ+-- 7,i7  
at lea/ #a me?od t repres5ts ! be/ & mo/
 accurate =m ( cont9u\s1 real-"t f5cel9e
 monitor+ bas$ on ! be/ available       
sci5ce2 &  7,,ii7 at lea/ #a me?od t    
repres5ts ! be/ & mo/ accurate =m (     
multimetal monitor+ bas$ on ! be/       
available sci5ce4  7ii7 ,updates requir$
 ,n less frequ5tly ?an once e #f ye>s1 !
 ,adm9i/rator %all review &1 if         
necess>y1 aft] public notice & a public 
comm5t p]iod ( n less ?an #fj days1     
/r5g!n or add new te/ me?ods t meet !   
requirem5ts "u clause 7i71 :i* %all be  

bas$ on-- 7,i7 ! be/ available monitor+ 
te*nologies t improve ! quality or      
quantity ( in=mation provid$ by1 or     
improve ! precision or o!r type (       
sci5tific reliability (1 a me?od2 &     
7,,ii7 ! advice ( /aff ( ! ,(fice (     
,en=cem5t & ,compliance1 /aff ( ! ,(fice
 ( ,rese>* & ,developm5t1 regional or   
o!r /aff )9 ! ,environm5tal ,protection 
,ag5cy responsible =1 & ) exp]tise on1 !
 en=cem5t ( ?is ,act1 & o!r monitor+    
exp]ts4  7#d7 ,(fice ( ,rese>* &        
,developm5t ,! ,adm9i/rator %all act    
?r\gh ! ,assi/ant ,adm9i/rator = ,rese>*
 & ,developm5t1 & 9 coord9ation ) !     
,assi/ant ,adm9i/rator = ,air &         
,radiation1 to c>ry out ?is subsection4 
7e7 ,monitor placem5t & ma9t5ance  7#a7 
,9 g5]al ,! ,adm9i/rator %all1 aft]     
public notice & a public comm5t p]iod ( 
n less ?an #fj days ) respect to monitor
 placem5t & ma9t5ance plans1 place &    
ma9ta91 or ensure placem5t & regul>     
ma9t5ance (1 all monitors requir$ "u ?is
 section to ensure effective & reliable 

emissions measurem5t pursuant to ?is    
section4  7#b7 ,ma9t5ance *eck ,!       
ma9t5ance requir$ "u p>agraph 7#a7 %all 
include a ma9t5ance *eck ( ! monitor n  
less frequ5tly ?an once e #ahj days1    
unless-- 7,a7 ! te/ me?od us$ by !      
monitor requires a ma9t5ance *eck m     
frequ5tly2 or  7,b7 a ma9t5ance *eck is 
reque/$ by a memb] ( ! public4  7#c7    
,public input ,! ,adm9i/rator %all1 aft]
 public notice & a public comm5t p]iod (
 n less ?an #fj days1 create a process1 
includ+ an accessible onl9e res\rce or  
website1 = ! public-- 7,a7 to track !   
ma9t5ance ( monitors "u ?is subsection2 
&  7,b7 to reque/ a ma9t5ance *eck ( a  
monitor4  7f7 ,report ,n lat] ?an #f    
ye>s aft] ! date ( enactm5t ( ?is ,act1 
& n less frequ5tly ?an once e #f ye>s   
!reaft]1 ! ,adm9i/rator %all submit to  
,congress & po/ publicly on ! website ( 
! ,environm5tal ,protection ,ag5cy a    
report describ+ ! results ( ! program   
c>ri$ out "u subsection 7a77#a71 :i*    
%all include-- 7#a7 ! results (         

emissions measurem5t implem5t$ "u t     
program2  7#b7 any actions ( !          
,adm9i/rator tak5 bas$ on t emissions   
measurem5t data or program2 &  7#c7 :e!r
 ! ,adm9i/rator proposes-- 7,a7 to      
cont9ue emissions measurem5ts at any or 
all ( ! /ation>y s\rces on ! li/ publi%$
 "u subsection 7c77#a72 or  7,b7 to     
implem5t emissions measurem5ts ( any    
additional /ation>y s\rces z det]m9$ "u 
subsection 7g74  7g7 ,det]m9ation reg>d+
 additional s\rces ,n lat] ?an #f ye>s  
aft] ! date ( enactm5t ( ?is ,act1 & n  
less frequ5tly ?an once e #f ye>s       
!reaft]1 ! ,adm9i/rator %all-- 7#a7 aft]
 public notice & a public comm5t p]iod (
 n less ?an #fj days1 make a det]m9ation
 ( :e!r to add or remove s\rces to ! li/
 publi%$ "u subsection 7c77#a7-- 7,a7 to
 ensure compliance ( ^? /ation>y s\rces 
) exi/+ emission /&>ds "u section #aab (
 ! ,clean ,air ,act 7#db ,u4,s4,c4      
#gdab72  7,b7 to prev5t & detect        
accid5tal releases2  7,c7 to protect !  
heal? ( ! communities1 includ+ *ildr5 & 

o!r vuln]able populations1 mo/ expos$ to
 ! emissions ( haz>d\s air pollutants f 
su* /ation>y s\rces to ! maximum ext5t  
practicable2 or  7,d7 to ensure ! #ajj  
highe/-priority s\rces or facilities1   
bas$ on ! be/ available sci5ce & ! mo/  
curr5t data on heal? risks & impacts    
7includ+ ! mo/ curr5t rese>* on *ildr5's
 heal?71 h emissions measurem5t sy/ems 9
 place = pollutants requir$ to be       
monitor$ "u ?is section2 &  7#b7 publi% 
a det]m9ation "u p>agraph 7#a7 9 !      
,f$]al ,regi/]4  7h7 ,report ,n lat] ?an
 #a ye> aft] ! date ( enactm5t ( ?is    
,act1 ! ,adm9i/rator %all submit to     
,congress & make publicly available     
onl9e a report t-- 7#a7 describes !     
/aff+ t is available1 necess>y1 & plann$
 to c>ry out ?is section2 &  7#b7       
demon/rates h[ ! ,adm9i/rator int5ds to 
c>ry out ! duties & requirem5ts ( ?is   
section )\t impact or delay on any o!r  
duty or responsibility ( ! ,adm9i/rator4
  7i7 ,no exemption au?ority ,no        
exemption f compliance ) any /&>d or    

limitation "u ?is section may be issu$  
pursuant to section #aab7;i77#d7 ( !    
,clean ,air ,act 7#db ,u4,s4,c4         
#gdab7;i77#d77 to any /ation>y s\rce4   
7j7 ,au?orization ( appropriations ,!re 
is au?oriz$ to be appropriat$ to c>ry   
out ?is section #adf1jjj1jjj = ! p]iod (
 fiscal ye>s #bjbf & #bjbg4  #d4        
,community air toxics monitor+  7a7     
,regulations ,n lat] ?an #b ye>s aft] ! 
date ( enactm5t ( ?is ,act1 !           
,adm9i/rator %all promulgate regulations
 pursuant to au?ority provid$ by !      
,clean ,air ,act1 :i* may include       
section #ajc1 subsections 7d71 7f71 &   
7r7 ( section #aab1 section #aac1 &     
section #aad ( t ,act 7#db ,u4,s4,c4    
#gdjc1 #gdab1 #gdac1 #gdad71 = ea* s\rce
 category describ$ 9 subsection 7b71 t--
 7#a7 require all s\rces 9 ! s\rce      
category to implem5t1 n lat] ?an #a ye> 
aft] ! promulgation ( ! regulations1 !  
be/ available =m ( emissions measurem5t1
 includ+ cont9u\s emissions monitor+ &  
f5cel9e monitor+1 to ensure compliance )

 ! emission /&>ds = haz>d\s air         
pollutants2  7#b7 = facilities 9 ! s\rce
 category t are requir$ to submit risk  
managem5t plans "u section #aab7r77#g7 (
 t ,act 7#db ,u4,s4,c4 #gdab7r77#g771   
require ea* facility to implem5t-- 7,a7 
cont9u\s1 real-"t monitor+ to provide = 
effective em]g5cy response & provide    
in=mation to prev5t future releases2 &  
7,b7 emissions measurem5t1 includ+      
f5cel9e monitor+1 to provide = effective
 em]g5cy response & provide in=mation to
 prev5t future releases2  7#c7 subject  
to subsection 7e7-- 7,a7 e/abli% a      
corrective action level at ! f5cel9e =  
at lea/ ! top #e haz>d\s air pollutants 
t drive ! canc]1 *ronic noncanc]1 or    
acute risk = ! s\rce category2 &  7,b7  
require corrective action = ! release ( 
any quantity ( a sub/ance li/$ pursuant 
to section #aab7r77#c7 ( t ,act 7#db    
,u4,s4,c4 #gdab7r77#c772  7#d7 if any   
applicable corrective action level "u   
p>agraph 7#c77;,a7 is exce$$1 require-- 
7,a7 a root cause analysis & prev5tive  

action report2  7,b7 full rem$ial       
action1 includ+ implem5tation ( all     
control te*nologies1 practices1         
processes1 op]ational improvem5ts1 or   
o!r measures necess>y to resolve !      
exce$ance & protect ! mo/ expos$ or mo/ 
vuln]able individuals pot5tially affect$
 by ! exce$ance 7includ+ *ildr57 & to   
make be/ ef=ts to prev5t ! exce$ance f  
recurr+1 bas$ on & apply+ input f ! mo/ 
affect$ individuals & communities2 &    
7,c7 a public report t-- 7i7 describes--
 7,i7 ! results ( ! root cause analysis 
& prev5tive action report "u subp>agraph
 7,a72 &  7,,ii7 ! rem$ial actions tak5 
"u subp>agraph 7,b72 &  7ii7 c]tifies t 
a violation ( ! ,clean ,air ,act 7#db   
,u4,s4,c4 #gdja et seq47 has occurr$2 & 
7#e7 treat any requirem5t impos$ by !   
regulations "u ?is section z a          
requirem5t "u section #aab ( ! ,clean   
,air ,act 7#db ,u4,s4,c4 #gdab7 t is    
en=ceable "u section #aac ( t ,act 7#db 
,u4,s4,c4 #gdac74  7b7 ,s\rce categories
 ,! s\rce categories describ$ 9 ?is     

subsection include-- 7#a7 ea* category  
or subcategory ( major s\rces or area   
s\rces t-- 7,a7 conta9s-- 7i7 at lea/ #a
 ( ! /ation>y s\rces ( haz>d\s air      
pollutants t are on ! li/ publi%$ "u    
section #c7;c72  7ii7 major s\rces or   
area s\rces id5tifi$ 9 ! mo/ rec5t      
,national ,emissions ,inv5tory ( !      
,environm5tal ,protection ,ag5cy z      
emitt+ a pollutant describ$ 9 section   
#c7;c77#c72  7iii7 petroleum1 *emical1  
petro*emical1 or pla/ics manufactur+    
s\rces1 m>9e vessel load+ op]ations1 or 
o!r s\rces t are classifi$ 9 #a or m (  
,nor? ,am]ican ,indu/ry ,classification 
,sy/em codes #cbb1 #cbd1 #cbe1 #cbf1    
#cca1 #ccb1 #cci1 #dbd1 & #efb2 or  7iv7
 any o!r major s\rce or area s\rce (    
fugitive haz>d\s air pollutant emissions
 = :i* ! ,environm5tal ,protection      
,ag5cy is subject to a c\rt-ord]$ or    
/atutory deadl9e1 engag$ 9 a            
reconsid]ation proce$+1 or subject to a 
c\rt rem& 7or is likely )9 ! #b-ye>     
p]iod beg9n+ on ! date ( enactm5t ( ?is 

,act to become subject to su* an        
obligation or action7 to review &       
det]m9e :e!r to revise ! emissions /&>ds
 t apply to t s\rce category2 or  7,b7  
conta9s any /ation>y s\rce t-- 7i7 is   
regulat$ "u p>agraph 7#g7 ( section     
#aab7r7 ( ! ,clean ,air ,act 7#db       
,u4,s4,c4 #gdab7r772 &  7ii7 has _h an  
accid5tal release or incid5t t is       
requir$ to be report$ dur+ ! previ\s    
#e-ye> p]iod "u t section & !           
regulations !reund] t 7 9 effect z (    
,janu>y #a1 #bjbe2 &  7#b7 any o!r s\rce
 category = :i* ! ,adm9i/rator det]m9es 
t requir+ f5cel9e monitor+ is likely to 
b5efit public heal? or welf>e1 includ+  
*ildr5's heal?1 bas$ on ! be/ available 
sci5ce4  7c7 ,det]m9ation ( be/         
available =m ( monitor+  7#a7 ,9 g5]al  
,! ,adm9i/rator1 9 consultation ) !     
,(fice ( ,air & ,radiation1 ! ,(fice (  
,en=cem5t & ,compliance ,assurance1 !   
,(fice ( ,environm5tal ,ju/ice &        
,ext]nal ,civil ,rights1 ! ,(fice (     
,*ildr5's ,heal?1 & ! ,(fice ( ,rese>* &

 ,developm5t1 %all1 = purposes ( !      
regulations promulgat$ pursuant to      
subsection 7a7-- 7,a7 det]m9e ! be/     
available =m ( emissions measurem5t1    
includ+ cont9u\s emissions monitor+ &   
f5cel9e monitor+2 &  7,b7 ensure !      
me?ods requir$ "u ! regulations are at  
lea/ z /r+5t z ! mo/ curr5t             
,environm5tal ,protection ,ag5cy-approv$
 or promulgat$ emission te/ or monitor+ 
me?od1 includ+ ,me?od #cbe;,a1 ,me?od   
#cbe;,b1 ,me?od #cbg1 & ,me?od          
,,to-#ae;,a4  7#b7 ,requirem5t ,9 c>ry+ 
out p>agraph 7#a77;,b71 ! ,adm9i/rator  
%all ensure t #a or m ( ! me?ods        
describ$ 9 or promulgat$ "u section #c  
or subsection 7d7 7includ+ multimetal   
monitor+7 is includ$ 9 ! regulations    
promulgat$ pursuant to subsection 7a7 if
 t me?od is ! be/ available me?od = #a  
or m ( ! pollutants = :i* monitor+ is   
requir$ "u ?is section4  7d7 ,me?ods &  
te*nologies  7#a7 ,9 g5]al ,= all       
/ation>y s\rces 9 ! s\rce categories    
describ$ 9 subsection 7b71 z ! be/      

available f5cel9e monitor+ me?od = ^?   
s\rce categories1 ! ,adm9i/rator may1 9 
! regulations promulgat$ pursuant to    
subsection 7a7-- 7,a7 require           
application1 implem5tation1 or employm5t
 ( optical remote s5s+ te*nology to     
provide real-"t measurem5ts ( air       
pollutant conc5trations along an        
op5-pa?2 or  7,b7 provide an explanation
 ( :y application1 implem5tation1 or    
employm5t ( #a or m ( ! te*nologies     
describ$ 9 subp>agraph 7,a7 is n        
necess>y-- 7i7 to ensure compliance ) ! 
emission /&>ds e/abli%$ "u ! regulations
 promulgat$ pursuant to subsection 7d71 
7f71 or 7r7 ( section #aab ( ! ,clean   
,air ,act 7#db ,u4,s4,c4 #gdab71 z      
applicable2 or  7ii7 to protect ! public
 heal?1 to prev5t accid5tal releases1 or
 to provide = effective em]g5cy         
response4  7#b7 ,multiple-s\rce or      
facility complexes  7,a7 ,def9ition (   
multiple-s\rce or facility complex ,9   
?is p>agraph1 ! t]m multiple-s\rce or   
facility complex means #a or m /ation>y 

s\rces co-locat$ at ! same site4  7,b7  
,multiple-s\rce or facility complex     
monitor+ ,9 ! regulations promulgat$    
pursuant to subsection 7a71 !           
,adm9i/rator %all ensure t ! be/        
available =m ( monitor+ = a             
multiple-s\rce or facility complex t    
conta9s n less ?an #b /ation>y s\rces 9 
#a or m ( ,nor? ,am]ican ,indu/ry       
,classification ,sy/em codes #cbd1 #cbe1
 & #cbf1 or a relat$ *emical or         
petro*emical sector1 is at lea/ a       
comb9ation (-- 7i7 real-"t1 op5-pa?     
monitor+2 &  7ii7 ,me?od #cbe;,a1 ,me?od
 #cbe;,b1 & ,me?od #cbg1 z applicable   
dep5d+ on ! types ( emissions to be     
measur$4  7,c7 ,requirem5t ,9 c>ry+ out 
subp>agraph 7,b71 ! ,adm9i/rator %all   
consid] :e!r any o!r multiple-s\rce or  
facility complexes %\ld be requir$ to   
employ ! comb9$ monitor+ me?ods describ$
 9 t subp>agraph4  7e7 ,heal? priority  
approa* ,9 promulgat+ ! corrective      
action level = ea* ( ! haz>d\s air      
pollutants describ$ 9 subsection        

7a77#c77;,a71 ! ,adm9i/rator %all-- 7#a7
 consid] ! be/ available sci5ce1 includ+
 apply+ ! mo/ heal?-protective approa*  
possible & apply+ a precaution>y approa*
 to acc\nt = unc]ta9ty2  7#b7 ensure t !
 own] or op]ator ( ! s\rce or facility  
r$uces ! emissions ( ! s\rce or facility
 to prev5t h>m if ! measur$ conc5tration
 at ! f5cel9e w\ld1 or is likely to--   
7,a7 increase h>m to public heal? or    
safety 7includ+ ?r\gh an increas$ heal? 
risk to any individual1 includ+ a *ild72
 or  7,b7 rea* a level t may result 9   
%ort-t]m1 long-t]m1 or *ronic human     
exposure to air pollution 7includ+ any  
exposure t beg9s 9 ut]o1 infancy1       
*ildhood1 or adolesc5ce7 t increases !  
risk (-- 7i7 heal? h>ms result+ f odors1
 irritation1 s5sitiz+ effects1 or any   
comb9ation ( ^? h>ms2  7ii7 a *ronic    
condition 7includ+ neurodevelopm5tal7 or
 disease 7includ+ canc] & o!r           
illnesses72 or  7iii7 dea?2 &  7#c7 take
 into acc\nt ! aggregate & cumulative   
emissions & heal? risks f ! facility1   

includ+ multiple s\rce categories1 z    
applicable1 to ensure full heal?        
protection f ! entire facility bas$ on !
 be/ available sci5ce4  7f7 ,ma9t5ance &
 public report+  7#a7 ,9 g5]al ,9 !     
regulations promulgat$ pursuant to      
subsection 7a71 ! ,adm9i/rator %all     
ensure t-- 7,a7 ! own]s or op]ators (   
s\rces subject to ! requirem5ts ( ?is   
section-- 7i7 p]=m regul> inspections & 
ma9t5ance ( all measur$ equipm5t requir$
 "u ?is section2 &  7ii7 submit to !    
,adm9i/rator regul> reports t-- 7,i7    
include ! measur$ emissions data        
collect$ by t emissions measurem5t      
equipm5t2  7,,ii7 describe ! /atus ( t  
measurem5t equipm5t2 &  7,,iii7 conta9 a
 detail$ explanation ( ! circum/ances   
surr\nd+ a delay 9 collect+ or miss+    
data2  7,b7 ! emissions measurem5t sy/em
 requir$ "u ?is section is cont9u\s &   
yields reliable data n less ?an #ie     
p]c5t ( ! "t1 )\t any regulatory        
exemption or ext5sion2 &  7,c7 any      
problem ) ! f5cel9e monitor+ equipm5t   

requir$ "u ?is section is repair$ )9 #b 
days ( discov]+ ! problem4  7#b7        
,violation ,9 ! regulations promulgat$  
pursuant to subsection 7a71 !           
,adm9i/rator %all-- 7,a7 require ! own] 
or op]ator ( a /ation>y s\rce subject to
 su* regulations to report1 ) respect to
 ! s\rce1 at lea/ semiannually-- 7i7 all
 exce$ances ( any corrective action     
level2 &  7ii7 all corrective action    
plann$ & tak52 &  7,b7 = purposes (     
impos+ p5alties1 treat ea* day on :i* a 
violation ( a report+ requirem5t "u     
subp>agraph 7,a7 cont9ues z a sep>ate   
violation4  7#c7 ,public report+  7,a7  
,9 g5]al ,! ,adm9i/rator %all make      
available on ! website ( ! ,environm5tal
 ,protection ,ag5cy1 9 an accessible    
=mat t includes multiple languages spok5
 by resid5ts liv+ ne> ! s\rce :]e       
monitor+ 0 conduct$-- 7i7 all emissions 
measurem5t plans1 reports1 & o!r        
in=mation collect$ or requir$ "u ?is    
section2  7ii7 all emissions measurem5t 
data collect$ by monitor+ equipm5t      

requir$ "u ?is section2 &  7iii7 an     
option to sign up = community-wide or   
s\rce-specific al]ts t al]t ! us] if !  
emissions conc5trations measur$ pursuant
 to clause 7i7 or 7ii71 z applicable1   
exce$-- 7,i7 a heal? ref]5ce level ( !  
,adm9i/rator t has be5 sci5tifically    
pe]-review$2  7,,ii7 a heal? ref]5ce    
level approv$ by ! ,adm9i/rator t has   
be5 sci5tifically pe]-review$2  7,,iii7 
a heal? ref]5ce level approv$ by any    
,/ate or ,tribal gov]nm5t t has be5     
sci5tifically pe]-review$2 or  7,,iv7 ! 
applicable corrective action level "u   
subsection 7a77#c77;,a74  7,b7 ,public  
notice & comm5t ,! ,adm9i/rator %all    
provide notice & receive public comm5t =
 n less ?an #fj days on ! =mat &        
accessibility ( ! in=mation requir$ to  
be made available "u subp>agraph 7,a74  
7,c7 ,publication ,! ,adm9i/rator %all  
publicize ! in=mation requir$ to be made
 available "u subp>agraph 7,a7 9 ea*    
community t conta9s a s\rce regulat$ "u 
?is section ?r\gh n less ?an #b ( ! mo/ 

widely view$ local m$ia =mats = memb]s (
 t community t live ne>e/ ! regulat$    
s\rce4  7g7 ,(fice ( ,rese>* &          
,developm5t ,! ,adm9i/rator %all ensure 
t ! ,assi/ant ,adm9i/rator = ,air &     
,radiation coord9ates ) ! ,assi/ant     
,adm9i/rator = ,rese>* & ,developm5t1 z 
well z any o!r appropriate (fices ( !   
,environm5tal ,protection ,ag5cy1 to    
c>ry out ?is section4  7h7 ,report ,n   
lat] ?an #a ye> aft] ! date ( enactm5t (
 ?is ,act1 ! ,adm9i/rator %all submit to
 ,congress & make publicly available    
onl9e a report t-- 7#a7 describes !     
/aff+ t is available1 necess>y1 & plann$
 to c>ry out ?is section2 &  7#b7       
demon/rates h[ ! ,adm9i/rator int5ds to 
c>ry out ! duties & requirem5ts ( ?is   
section )\t impact or delay on any o!r  
duty or responsibility ( ! ,adm9i/rator4
  7i7 ,no exemption au?ority ,no        
exemption f compliance ) any /&>d or    
limitation "u ?is section may be issu$  
pursuant to section #aab7;i77#d7 ( !    
,clean ,air ,act 7#db ,u4,s4,c4         

#gdab7;i77#d77 to any /ation>y s\rce4   
7j7 ,au?orization ( appropriations ,!re 
is au?oriz$ to be appropriat$ to c>ry   
out ?is section #ej1jjj1jjj = ! p]iod ( 
fiscal ye>s #bjbf & #bjbg4  #e4 ,,naaqs 
monitor+ network  7a7 ,deploym5t (      
,n,core multipollutant monitor+ /ations 
7#a7 ,9 g5]al ,! ,adm9i/rator %all      
require ! deploym5t ( #hj additional    
,n,core multipollutant monitor+ /ations4
  7#b7 ,requirem5t ,all monitors at !   
/ations requir$ to be deploy$ pursuant  
to p>agraph 7#a7 t measure pollutants = 
:i* ! ,adm9i/rator has e/abli%$ national
 ambi5t air quality /&>ds %all-- 7,a7 be
 ,f$]al ref]5ce me?od or ,f$]al         
equival5t me?od monitors2 &  7,b7       
produce monitor+ data t are suffici5t = 
det]m9+ :e!r ! relevant national ambi5t 
air quality /&>d is met at ! site4  7b7 
,deadl9e ,n lat] ?an #ah mon?s aft] !   
date ( enactm5t ( ?is ,act1 !           
,adm9i/rator %all ensure t all ,n,core  
multipollutant monitor+ /ations requir$ 
to be deploy$ "u subsection 7a77#a7     

are-- 7#a7 in/all$ & integrat$ into !   
air quality monitor+ sy/em e/abli%$     
pursuant to sections #aaj7;a77#b77;,b7 &
 #cai ( ! ,clean ,air ,act 7#db         
,u4,s4,c4 #gdaj7;a77#b77;,b71 #gfai72 & 
7#b7 aft] in/allation1 op]at$ & ma9ta9$ 
on a cont9u+ basis4  7c7 ,monitor+      
results ,monitor+ results f ,n,core     
multipollutant /ations requir$ to be    
deploy$ "u subsection 7a77#a7 %all be   
us$ =--  7#a7 assessm5ts ( ! compliance 
( areas ) national ambi5t air quality   
/&>ds2  7#b7 integrat$ sci5ce assessm5ts
 9 reviews ( national ambi5t air quality
 /&>ds e/abli%$ "u section #aji ( !     
,clean ,air ,act 7#db ,u4,s4,c4 #gdji72 
7#c7 evaluat+ disp>ities ( pollution    
exposures )9 metropolitan areas2 &  7#d7
 su* o!r purposes z ! ,adm9i/rator      
det]m9es w promote ! protection ( public
 heal? f air pollution4  7d7 ,locations 
7#a7 ,vuln]able populations  7,a7 ,9    
g5]al ,! ,adm9i/rator %all ensure t n   
few] ?an #dj ( ! ,n,core multipollutant 
monitor+ /ations requir$ to be deploy$  

"u subsection 7a77#a7-- 7i7 are n limit$
 to metropolitan /ati/ical areas )      
populations ( #ej1jjj or great]2 &  7ii7
 meet ! requirem5t describ$ 9           
subp>agraph 7,b74  7,b7 ,requirem5t     
describ$ ,! requirem5t ref]r$ to 9      
subp>agraph 7,a77ii7 is t ! ,n,core     
multipollutant monitor+ /ations %all be 
sit$ 9 c5sus tracts t ea* meet #a or m (
 ! foll[+ crit]ia1 ) ! specific site    
select$ consi/5t ) ,app5dix ,d to "p #eh
 ( title #dj1 ,code ( ,f$]al            
,regulations 7z 9 effect on ! date (    
enactm5t ( ?is ,act71 except t :]e !    
provisions ( ?is ,act conflict ) t      
app5dix1 ! provisions ( ?is ,act %all   
control3 7i7 ,! rates ( *ildhood a/hma1 
adult a/hma1 *ronic ob/ructive pulmon>y 
disease1 he>t disease1 or canc] are n   
less ?an #e p]c5t high] ?an ! national  
av]age = t condition 9 ! c5sus tract4   
7ii7 ,! p]c5tage ( p liv+ bel[ ! pov]ty 
level1 t are above age #ah )\t a high   
s*ool diploma1 or t are unemploy$1 is   
high] ?an ! national av]age 9 ! c5sus   

tract4  7iii7 #b or m major s\rces 7z   
def9$ 9 section #eja ( ! ,clean ,air    
,act 7#db ,u4,s4,c4 #gffa77 are locat$  
)9 ! c5sus tract or adjac5t c5sus tracts
 comb9$4  7iv7 ,!re is a                
high]-?an-national-av]age population 9 !
 c5sus tract ( vuln]able or s5sitive    
individuals :o may be at great] risk ?an
 ! g5]al population ( adv]se heal?      
effects f exposure to #a or m air       
pollutants = :i* national ambi5t air    
quality /&>ds h be5 e/abli%$ "u section 
#aji ( ! ,clean ,air ,act 7#db ,u4,s4,c4
 #gdji74  7#b7 ,sit+ det]m9ations ,9    
det]m9+ & approv+ sites = ,n,core       
multipollutant monitor+ /ations requir$ 
to be deploy$ "u subsection 7a77#a71 !  
,adm9i/rator %all-- 7,a7 invite         
proposals f or on behalf ( resid5ts (   
any community = ! sit+ ( ! /ations 9 t  
community1 :i* may include invit+       
proposals ?r\gh regional or virtual     
meet+s2  7,b7 prioritize sit+ ( !       
/ations 9 c5sus tracts or c\nties bas$  
on-- 7i7 ! pot5tial = ! levels ( #a or m

 air pollutants to be monitor$ by !     
/ations to rea* or exce$ ! level ( !    
applicable national ambi5t air quality  
/&>d e/abli%$ "u section #aji ( ! ,clean
 ,air ,act 7#db ,u4,s4,c4 #gdji71       
includ+ evid5ce ( relevant indu/rial    
activity or ne>by exce$ances2  7ii7 !   
numb] ( p :o live1 "w1 att5d s*ool1 or  
recreate 9 ! area or areas = :i*        
monitor+ by ! /ations is reasonably     
anticipat$ to be repres5tative ) respect
 to air quality & ! proportion ( ^? p :o
 are at high] risk ?an ! g5]al          
population ( adv]se heal? effects f !   
air pollutants monitor$2  7iii7 ! lack  
or inadequacy ( exi/+ air quality       
monitors = provid+ repres5tative air    
quality data = ! affect$ area or areas =
 ! pollutants to be measur$ by ! /ation2
 &  7iv7 ! curr5t designation ( ! area 9
 :i* ! monitor+ /ation w\ld be locat$ z 
unclassifiable or 9 atta9m5t = #a or m (
 ! pollutants to be monitor$ by t       
/ation2 &  7,c7 prior to mak+ sit+      
det]m9ations-- 7i7 hold at lea/ #a      

public he>+ 9 or ne> ea* propos$ sit+   
location2  7ii7 provide public notice ( 
! propos$ sit+ locations & ! he>+s      
requir$ "u clause 7i7-- 7,i7 9 ! ,f$]al 
,regi/]2  7,,ii7 by email to p]sons :o h
 reque/$ notice ( propos$ sit+          
det]m9ations2  7,,iii7 by news release2 
&  7,,iv7 by po/+ on ! public website ( 
! ,environm5tal ,protection ,ag5cy2     
7iii7 provide an opportunity = public   
comm5t = n less ?an #fj days aft] ! date
 ( publication ( ! notice requir$ "u    
clause 7ii7 9 ! ,f$]al ,regi/]2 &  7iv7 
publi% onl9e an explanation & record = !
 sit+ decisions ( ! ,adm9i/rator4  7#c7 
,reliance on hybrid me?ods ,9 det]m9+ "u
 p>agraph 7#b77;,b77i7 ! pot5tial = an  
air pollutant to rea* or exce$ ! level (
 ! applicable /&>d1 ! ,adm9i/rator may  
rely on hybrid me?ods t comb9e in=mation
 f multiple s\rces1 includ+ monitors1   
s5sors1 model+1 & satellites4  7e7      
,additional ambi5t monitors  7#a7 ,9    
g5]al ,! ,adm9i/rator %all deploy n few]
 ?an #ajj additional ,f$]al ref]5ce     

me?od monitors or ,f$]al equival5t me?od
 monitors = #a or m air pollutants = :i*
 national ambi5t air quality /&>ds h be5
 e/abli%$ "u section #aji ( ! ,clean    
,air ,act 7#db ,u4,s4,c4 #gdji7 9       
areas-- 7,a7 t are unmonitor$ or        
und]monitor$1 z det]m9$ by !            
,adm9i/rator2 &  7,b7 )9 :i* !          
,adm9i/rator det]m9es1 aft] public      
notice & comm5t1 t add+ ^? monitors is  
w>rant$-- 7i7 to detect :e!r ! area is 9
 nonatta9m5t ( ! applicable national    
ambi5t air quality /&>ds2 &  7ii7 to    
improve ! publicly available data on air
 quality = #a or m ( ^? air pollutants  
7or precursors to ^? air pollutants74   
7#b7 ,sit+ det]m9ations ,9 approv+ sites
 = new ,f$]al ref]5ce me?od monitors or 
,f$]al equival5t me?od monitors requir$ 
"u ?is subsection1 ! ,adm9i/rator %all  
prioritize sit+ ( ! /ations 9 c5sus     
tracts or c\nties 9 accordance )        
subsection 7d77#b77;,b74  7#c7 ,relation
 to previ\sly deploy$ or plann$ monitors
 ,! ,f$]al ref]5ce me?od monitors       

requir$ "u ?is subsection %all be 9     
addition to1 & n 9 lieu (1 any monitors 
already deploy$ or plann$ = deploym5t by
 ! ,adm9i/rator1 any ,/ate1 any o!r     
gov]nm5tal entity1 or any o!r entity    
prior to ! date ( enactm5t ( ?is ,act4  
7f7 ,report ,n lat] ?an #b ye>s aft] !  
date ( enactm5t ( ?is ,act1 !           
,adm9i/rator %all-- 7#a7 9 coord9ation )
 ! ,/ates1 complete an assessm5t1 :i*   
includes public input1 on ! /atus ( all 
ambi5t air quality monitors t are "p (  
,f$]al1 ,/ate1 or local networks & us$ =
 det]m9+ compliance ) national ambi5t   
air quality /&>ds1 :i* %all id5tify--   
7,a7 ea* monitor t is n op]at+ prop]ly &
 t ne$s to be repair$ or replac$2 &     
7,b7 ea* monitor t is pa/ ! end ( its   
ord9>y useful life2 &  7#b7 submit to   
,congress & make available on ! public  
website ( ! ,environm5tal ,protection   
,ag5cy a report t includes-- 7,a7 a li/ 
( all monitors id5tifi$ "u p>agraph     
7#a72 &  7,b7 a s*$ule & plan to re/ore 
to prop] op]ation or replace all        

monitors includ$ 9 ! li/ "u p>agraph    
7#a77;,a7 & to replace all monitors     
includ$ on ! li/ "u p>agraph 7#a77;,b71 
) all re/orations & replacem5ts to be   
complet$ n lat] ?an #dj mon?s aft] !    
date ( enactm5t ( ?is ,act1 except t !  
s*$ule & plan %all n apply to monitors--
 7i7 t h be5 discont9u$ 9 accordance )  
section #eh4ad7;c7 ( title #dj1 ,code ( 
,f$]al ,regulations 7z 9 effect on !    
date ( enactm5t ( ?is ,act72 &  7ii7    
7,i7 = :i* su* discont9uation is n      
subject to a judicial *all5ge2 or       
7,,ii7 = :i* a judicial *all5ge describ$
 9 subclause 7,i7 has be5 fully resolv$ 
by a settlem5t or ord] t au?orizes      
discont9uation ( ! monitor4  7g7        
,designations ,n lat] ?an #b ye>s aft] !
 date on :i* data are receiv$ f a       
monitor sit$ pursuant to ?is section t  
demon/rate t an area designat$ by !     
,adm9i/rator pursuant to p>agraph 7#a7 (
 section #ajg7;d7 ( ! ,clean ,air ,act  
7#db ,u4,s4,c4 #gdjg7;d77 z 9 atta9m5t  
or unclassifiable = an air pollutant is 

n meet+ or is contribut+ to air quality 
9 a ne>by area t does n meet #a or m    
applicable national ambi5t air quality  
/&>ds1 ! ,adm9i/rator %all r$esignate   
pursuant to p>agraph 7#c7 ( t section t 
area z 9 nonatta9m5t = t pollutant      
unless ! designation is o!rwise preclud$
 "u ?is ,act4  7h7 ,satellite monitor+  
7#a7 ,def9ition ( design value ,9 ?is   
subsection1 ! t]m design value means1 = 
ea* pollutant1 ! air quality /ati/ic !  
,adm9i/rator def9es 9 "p #ej 7includ+   
app5dices7 ( title #dj1 ,code ( ,f$]al  
,regulations 7z 9 effect on ! date (    
enactm5t ( ?is ,act71 = comp>ison ) !   
relevant national ambi5t air quality    
/&>d e/abli%$ "u section #aji ( ! ,clean
 ,air ,act 7#db ,u4,s4,c4 #gdji71       
reg>dless ( :e!r ! regulation 7includ+  
app5dices7 9 "p #ej ( title #dj1 ,code (
 ,f$]al ,regulations 7z 9 effect on !   
date ( enactm5t ( ?is ,act71 uses ! t]m 
design value4  7#b7 ,satellite monitor+ 
data  7,a7 ,provision ( satellite data  
,! ,adm9i/rator %all consult ) !        

,adm9i/rator ( ! ,national ,a]onautics &
 ,space ,adm9i/ration on me?ods to      
facilitate ! use ( data f ! satellites (
 ! ,national ,a]onautics & ,space       
,adm9i/ration or o!r entities = use 9   
calculat+ design values "u any national 
ambi5t air quality /&>ds = ,,pm#aj1     
,,pm#b4e1 ozone1 & oxides ( nitrog5 =   
purposes ( det]m9+ compliance or        
noncompliance ) ! national ambi5t air   
quality /&>ds = ^? pollutants4  7,b7    
,regulations requir$ ,n lat] ?an #ah    
mon?s aft] ! date ( enactm5t ( ?is ,act1
 ! ,adm9i/rator %all1 aft] public notice
 9 ! ,f$]al ,regi/] & a public comm5t   
p]iod ( n less ?an #fj days1 promulgate 
regulations to specify proc$ures        
7includ+ any model+ te*niques7 = us+    
data describ$ 9 subp>agraph 7,a7 9      
comb9ation ) in=mation f multiple       
s\rces1 includ+ monitors & model+1 to   
calculate ! expect$ numb] ( exce$ances  
p] ye> & ! design values = ,,pm#aj1     
,,pm#b4e1 ozone1 & oxides ( nitrog5 =   
purposes ( det]m9+ compliance or        

noncompliance ) ! national ambi5t air   
quality /&>ds = ^? pollutants4  7#c7    
,national ,academy ( ,sci5ces report    
7,a7 ,9 g5]al ,! ,adm9i/rator may ent]  
into an arrangem5t ) ! ,national        
,academy ( ,sci5ces "u :i* ! ,national  
,academy ( ,sci5ces agrees to submit a  
report t describes ! actions necess>y1  
includ+ new sci5ce & satellite assets1  
to enable ! contribution ( satellite    
monitor+ to ! calculation ( design      
values & nonatta9m5t det]m9ations "u any
 national ambi5t air quality /&>ds =    
ozone & oxides ( sulfur e/abli%$ "u     
section #aji ( ! ,clean ,air ,act 7#db  
,u4,s4,c4 #gdji74  7,b7 ,regulations    
requir$  7i7 ,9 g5]al ,n lat] ?an #ah   
mon?s aft] ! date ( enactm5t ( ?is ,act1
 ! ,adm9i/rator1 9 coord9ation ) !      
,adm9i/rator ( ! ,national ,a]onautics &
 ,space ,adm9i/ration & ! ,adm9i/rator (
 ! ,national ,oceanic & ,atmosph]ic     
,adm9i/ration1 %all1 aft] public notice 
9 ! ,f$]al ,regi/] & a public comm5t    
p]iod ( n less ?an #fj days1 promulgate 

regulations t provide a plan = ! use (  
satellite monitor+ data 9 calculat+     
design values = ! pollutants describ$ 9 
subp>agraph 7,a74  7ii7 ,requirem5t ,n  
lat] ?an ,janu>y #a1 #bjbh1 !           
,adm9i/rator %all implem5t ! plan       
requir$ by clause 7i7 & provide = use ( 
satellite data 9 calculat+ design values
 = ! pollutants describ$ 9 subp>agraph  
7,a74  7i7 ,monitor+ plans ,not)/&+ any 
o!r provision ( law1 ! ,adm9i/rator may 
n approve a ,/ate monitor+ plan "u      
section #eh4aj ( title #dj1 ,code (     
,f$]al ,regulations 7or successor       
regulations71 unless-- 7#a7 ! ,/ate     
provid$1 ) respect to ! ,/ate monitor+  
plan-- 7,a7 public notice ( ! proposal (
 ! plan 9 a highly accessible =mat 9    
multiple languages1 includ+ a publicly  
accessible web page address :]e memb]s (
 ! public c at any "t view ! entire     
propos$ plan & support+ mat]ials2  7,b7 
n less ?an #de days = public comm5t2 &  
7,c7 an opportunity = public he>+2 &    
7#b7 ! ,adm9i/rator-- 7,a7 proposes 9 ! 

,f$]al ,regi/] to approve or disapprove 
( ! ,/ate monitor+ plan2  7,b7 provides 
n less ?an #de days = public comm5t on !
 proposal describ$ 9 subp>agraph 7,a72 &
  7,c7 aft] consid]ation ( any comm5ts  
receiv$ pursuant to subp>agraph 7,b71   
publi%es 9 ! ,f$]al ,regi/] ! f9al      
action on ! proposal describ$ 9         
subp>agraph 7,a74  7j7 ,fund+  7#a7     
,au?orization ( appropriations ,!re is  
au?oriz$ to be appropriat$ to c>ry out  
?is section #ge1jjj1jjj = fiscal ye>    
#bjbf4  7#b7 ,uses ,! ,adm9i/rator--    
7,a7 may use ! am\nts made available to 
c>ry out ?is section-- 7i7 to directly  
deploy new or replacem5t ,n,core        
multipollutant monitor+ /ations requir$ 
to be deploy$ "u subsection 7a77#a72 or 
7ii7 to make grants "u section #ajc or  
#aje ( ! ,clean ,air ,act 7#db ,u4,s4,c4
 #gdjc1 #gdje7 to ,/ate & local         
gov]nm5ts = deploym5t & op]ation ( !    
,n,core multipollutant monitor+ /ations 
requir$ to be deploy$ "u subsection     
7a77#a72 &  7,b7 %all use n less ?an #e 

p]c5t1 b n m ?an #aj p]c5t1 ( ! am\nts  
made available to c>ry out ?is section  
to p]=m ! ma9t5ance & repairs necess>y  
to re/ore to op]ation ,n,core           
multipollutant monitor+ /ations t are-- 
7i7 z ( ! date ( enactm5t ( ?is ,act1   
nonop]ational2 &  7ii7 locat$ 9 areas t 
are designat$ z 9 nonatta9m5t ( national
 ambi5t air quality /&>ds e/abli%$ "u   
section #aji ( ! ,clean ,air ,act 7#db  
,u4,s4,c4 #gdji7 = ozone or p>ticulate  
matt]4  #f4 ,community air quality sy/em
 monitor+  7a7 ,deploym5t ( air quality 
sy/ems  7#a7 ,9 g5]al ,n lat] ?an #b    
ye>s aft] ! date ( enactm5t ( ?is ,act1 
! ,adm9i/rator-- 7,a7 %all deploy1 9    
accordance ) ! prioritization crit]ia   
describ$ 9 section #e7;d77#b71 n few]   
?an #a1jjj air quality sy/ems1 ea* ( :i*
 %all co/ n m ?an #e1jjj2  7,b7 %all    
deploy ^? air quality sy/ems 9 clu/]s ( 
n few] ?an #e 9 ea* ( ! c5sus tracts or 
c\nties select$2  7,c7 be=e det]m9+ &   
approv+ sites = ^? air quality sy/ems1  
%all invite1 ?r\gh public notice & o!r  

means design$ to rea* communities       
disproportionately impact$ by air       
pollution1 proposals f or on behalf (   
resid5ts ( any community = ! sites2     
7,d7 may contract ) nonpr(it            
organizations 7includ+ academic         
in/itutions7 & ,/ate & local air        
pollution control ag5cies to conduct air
 quality sy/em monitor+ & report !      
results2 &  7,e7 %all make data f air   
quality sy/ems in/all$ pursuant to ?is  
section public on an easily accessible  
data plat=m4  7#b7 ,requirem5t ,9 c>ry+ 
out p>agraph 7#a71 ! ,adm9i/rator %all  
select sy/ems = deploym5t t-- 7,a7 are  
available on ! m>ket at ! "t ( pur*ase2 
7,b7 ! ,adm9i/rator det]m9es w provide  
data ( suffici5t accuracy to provide a  
reasonable basis = det]m9+ :e!r !       
location 9 :i* ! air quality sy/em is   
sit$ is or may be at risk ( exce$+ #a or
 m national ambi5t air quality /&>ds    
e/abli%$ "u section #aji ( ! ,clean ,air
 ,act 7#db ,u4,s4,c4 #gdji72 &  7,c7 are
 ! l[e/ co/ available t meet ! /&>ds    

describ$ 9 subp>agraph 7,b74  7#c7      
,exception to co/ limitation ,not)/&+   
p>agraph 7#a71 if ! ,adm9i/rator        
det]m9es 9 writ+ t a sy/em to measure a 
p>ticul> pollutant is n available on !  
m>ket at a price at or bel[ #e1jjj ea*1 
! ,adm9i/rator may sp5d an am\nt above  
#e1jjj to acquire t sy/em s long z !    
,adm9i/rator complies ) subp>agraphs    
7,b7 & 7,c7 ( p>agraph 7#b74  7b7       
,pollutants  7#a7 ,9 g5]al  7,a7 ,li/ ,n
 few] ?an #ejj air quality sy/ems       
deploy$ pursuant to subsection 7a7 %all 
measure #a or m ( ! foll[+ pollutants3  
7i7 ,ozone4  7ii7 ,,pm#b4e4  7iii7      
,oxides ( nitrog54  7iv7 ,sulfur        
dioxide4  7,b7 ,requir$ s5sors ,all air 
quality sy/ems deploy$ pursuant to      
subsection 7a7 may include s5sors to    
measure w9d spe$1 w9d direction1        
relative humidity1 c>bon dioxide & c>bon
 monoxide1 & o!r inputs t aid ) s\rce   
id5tification4  7#b7 ,det]m9ation ,!    
,adm9i/rator %all det]m9e :i* air       
pollutant or air pollutants an air      

quality sy/em deploy$ pursuant to       
subsection 7a7 %all monitor bas$ on !   
pollution s\rces affect+ ! area 9 :i* ! 
air quality sy/em is to be deploy$4  7c7
 ,det]m9ation & in/allation  7#a7 ,9    
g5]al ,n lat] ?an #ah mon?s aft] ! date 
on :i* an air quality sy/em deploy$     
pursuant to subsection 7a7 has be5      
monitor+ air quality data = #a ye>1 !   
,adm9i/rator %all det]m9e :e!r ! air    
quality sy/ems deploy$ 9 ! applicable   
c5sus tract or c\nty report$ air        
pollution levels ov] ! #a-ye> p]iod end+
 on ! date ( ! det]m9ation t rea*$ or   
exce$$ #ih p]c5t ( ! level ( any        
applicable national ambi5t air quality  
/&>d e/abli%$ "u section #aji ( ! ,clean
 ,air ,act 7#db ,u4,s4,c4 #gdji7 = any  
air pollutant4  7#b7 ,requirem5t ,if !  
,adm9i/rator makes a det]m9ation "u     
p>agraph 7#a7 t an air pollutant        
describ$ 9 subsection 7b77#a7 met or    
exce$$ ! ?re%old describ$ 9 t p>agraph1 
! ,adm9i/rator %all1 n lat] #ahj days   
aft] ! date ( ! det]m9ation1 ensure t   

,f$]al ref]5ce me?od monitors or ,f$]al 
equival5t me?od monitors are in/all$ & 9
 op]ation )9 t c5sus tract or c\nty =   
ea* pollutant t met or exce$$ ! ?re%old4
  7#c7 ,exceptions ,! ,adm9i/rator %all 
waive ! requirem5t ( p>agraph 7#b7 if ! 
,adm9i/rator f9ds1 )9 ! #ahj-;day p]iod 
describ$ 9 t p>agraph1 & aft] provid+   
notice & an opportunity = public comm5t1
 t bas$ on cle> & conv9c+ evid5ce-- 7,a7
 ! measurem5ts f ! sy/ems support+ !    
det]m9ation describ$ 9 p>agraph 7#b7 7 s
 inaccurate z to provide no reasonable  
basis = f9d+ t levels ( ! relevant      
pollutant rea*$ #ih p]c5t ( ! level ( ! 
national ambi5t air quality /&>d        
e/abli%$ "u section #aji ( ! ,clean ,air
 ,act 7#db ,u4,s4,c4 #gdji7 = ! relevant
 pollutant2 or  7,b7 complem5t>y data1  
su* z in=mation on ! ambi5t matric1     
meteorology1 measurem5ts f o!r ne>by    
sy/ems or ambi5t monitors1 model+1      
satellite data1 or o!r relevant &       
reliable in=mation1 demon/rate t levels 
( ! relevant pollutant c\ld n h         

plausibly rea*$ #ih p]c5t ( ! level ( t 
/&>d4  7d7 ,report ,n lat] ?an #a ye>   
aft] ! date ( enactm5t ( ?is ,act1 &    
aft] public notice & a public comm5t    
p]iod ( n less ?an #fj days1 !          
,adm9i/rator %all make publicly         
available onl9e a report describ+       
additional areas 9 :i* data f l[-co/ air
 quality sy/ems may be relevant or      
useful = decisionmak+ or = ! purpose (  
increas+ public access to in=mation4    
7e7 ,au?orization ( appropriations ,!re 
is au?oriz$ to be appropriat$ to c>ry   
out ?is section #f1jjj1jjj = fiscal ye> 
#bjbf4  #g4 ,haz>d\s air pollutant      
monitor+  7a7 ,9 g5]al ,n lat] ?an #b   
ye>s aft] ! date ( enactm5t ( ?is ,act1 
= ! purposes ( improv+ ! quality ( !    
national emissions inv5tory & advanc+   
public access to in=mation1 !           
,adm9i/rator %all1 aft] public notice & 
a public comm5t p]iod ( n less ?an #fj  
days1 am5d subp>t ,a ( "p #ea ( title   
#dj1 ,code ( ,f$]al ,regulations1 to    
update & exp& ! requirem5ts "u t subp>t 

to require all major & non-major s\rces 
to report additional emissions data1    
includ+ emissions ( haz>d\s air         
pollutants1 p]fluoroalkyl sub/ances1 &  
polyfluoroalkyl sub/ances4  7b7 ,m9imum 
requirem5ts ,! am5dm5t requir$ "u       
subsection 7a7 %all1 at a m9imum-- 7#a7 
conta9 all am5dm5ts describ$ 9 ! propos$
 rule ( ! ,environm5tal ,protection     
,ag5cy entitl$ ,revisions to ! ,air     
,emissions ,report+ ,requirem5ts 7#hh   
,f$4 ,reg4 #edaah 7,augu/ #i1 #bjbc772  
7#b7 ensure report+ ( emissions dur+    
p]iods ( malfunction ( ! s\rce2 &  7#c7 
consi/5t ) ! proposal to require report+
 ( emissions ( p]fluoroalkyl sub/ances &
 polyfluoroalkyl sub/ances 9 ! rule     
describ$ 9 p>agraph 7#a71 require1 9 !  
report+ cycle imm$iately foll[+ ! date  
on :i* a pollutant is li/$ z a haz>d\s  
air pollutant1 ! report+ ( emissions ( t
 pollutant4  7c7 ,effective date ,!     
am5dm5t requir$ "u subsection 7a7 %all  
take effect = ! fir/ inv5tory ye> t     
beg9s aft] t am5dm5t is f9aliz$4  #h4   

,data requirem5t ,to ! ext5t            
practicable1 ! ,adm9i/rator %all-- 7#a7 
7,a7 re/ore = public access ! ,,ejscre5 
mapp+ tool ( ! ,environm5tal ,protection
 ,ag5cy2 or  7,b7 create a relevant1    
nationwide geospatial mapp+ & scre5+    
tool simil> to & provid+1 at m9imum1 all
 ( ! data previ\sly includ$ 9 !         
,,ejscre5 mapp+ tool t ! ,adm9i/rator1  
act+ ?r\gh ! ,assi/ant ,adm9i/rator =   
,rese>* & ,developm5t1 %all make        
available onl9e = public comm5t n lat]  
?an #bgj days aft] ! date ( enactm5t (  
?is ,act2 &  7#b7 integrate into !      
applicable tool re/or$ or creat$ "u     
p>agraph 7#a7 ! data collect$ ?r\gh !   
programs e/abli%$ "u ?is ,act4  #i4     
,rule ( con/ruction ,no?+ 9 ?is ,act    
am5ds any o!r /atute or revises or alt]s
 any duty or au?ority ( ! ,adm9i/rator  
"u any o!r applicable law4