,i  #aah? ,,congress  #a/ ,session  ,h4 
,r4 #befa  ,,9 ,,! ,,h\se ,,(           
,,repres5tatives  ,april #aj1 #bjbc,mr4 
,lyn* introduc$ ! foll[+ bill2 :i* 0    
ref]r$ to ! ,committee on               
,transportation & ,infra/ructure  ,a    
,,bill  ,to require ! ,secret>y (       
,transportation to ent] into an agreem5t
 ) ! ,national ,academies ( ,sci5ces1   
,eng9e]+1 & ,m$ic9e to produce a report 
t id5tifies & recomm5ds a sy/em (       
measur+ aviation noise1 & = o!r         
purposes4  #a4 ,%ort title ,?is ,act may
 be cit$ z ! ,pe]-,review$ ,report on   
,measur+ ,metrics & ,?re%olds4  #b4     
,report on sy/em = measur+ aviation     
noise  7a7 ,9 g5]al ,n lat] ?an #ij days
 aft] ! date ( enactm5t ( ?is ,act1 !   
,secret>y ( ,transportation %all seek to
 ent] into an agreem5t ) ! ,national    
,academies ( ,sci5ces1 ,eng9e]+1 &      
,m$ic9e 9 :i* ! ,national ,academies    
%all produce a report t id5tifies &     
recomm5ds a sy/em ( measur+ aviation    
noise t-- 7#a7 ) a highly reliable      

relation%ip1 categorizes noise levels to
 det]m9e compatibility = resid5tial     
areas & high annoyance areas bas$ on    
appropriate metrics2 &  7#b7 meets !    
requirem5ts ( section #dgejb7a7 ( title 
#di1 ,unit$ ,/ates ,code4  7b7          
,requirem5ts ,9 produc+ ! report requir$
 "u subsection 7a71 ! ,national         
,academies %all-- 7#a7 consult-- 7,a7   
multidiscipl9>y exp]ts f public heal? & 
m$ical pr(essions2  7,b7 sleep exp]ts2  
7,c7 noise exp]ts2 &  7,d7 ac\/ical     
eng9e]s2 &  7#b7 consid]-- 7,a7 !       
,neighborhood ,environm5tal ,/udy       
conduct$ by ! ,f$]al ,aviation          
,adm9i/ration2  7,b7 multiple metrics = 
measur+ aviation noise1 includ+-- 7i7   
,n-,above2  7ii7 ,t-,above2  7iii7      
,"t-,above-,ambi5t2  7iv7 ,c-weight$    
d,b2 &  7v7 day-night av]age s\nd level 
betwe5 #dj & #ge d,b2  7,c7 ! diff]5ce  
betwe5 local noise environm5ts1 includ+ 
ambi5t noise1 & aircraft-induc$ noise2  
7,d7 nighttime noise2 &  7,e7 ! effects 
( frequ5t & p]si/5t noise ev5ts & !     

effects on next g5]ation air            
transportation sy/em te*nology2 &  7#c7 
address :e!r ! metrics us$ to det]m9e   
:e!r a *ange 9 noise levels 9 a next    
g5]ation air transportation sy/em has a 
significant or reportable impact on su* 
sy/em are appropriate metrics to be us$ 
9 ! sy/em ( measur+ aviation noise      
describ$ 9 subsection 7a74