,,ii  #aagth ,,congress  #ast ,session  
,s4 #afji  ,,in ,,the ,,senate ,,of     
,,the ,,united ,,states  ,may #ac1      
#bjba,mr4 ,markey 7for himself1 ,mr4    
,wicker1 and ,mr4 ,bennet7 introduced   
the following bill2 which was read twice
 and referred to the ,committee on      
,finance  ,a ,,bill  ,to amend the      
,internal ,revenue ,code of #aihf to    
ensure that electrochromic glass        
qualifies as energy property for        
purposes of the energy credit4  #a4     
,short title ,this ,act may be cited as 
the ,dynamic ,glass ,act4  #b4          
,inclusion of electrochromic glass as   
energy property for purposes of the     
energy credit  7a7 ,in general ,section 
#dh7;a7 of the ,internal ,revenue ,code 
of #aihf is amended-- 7#a7 in paragraph 
7#b77;,a77i7-- 7,a7 in subclause 7,,iv71
 by striking and at the end1 and  7,b7  
by adding at the end the following3     
7,,vi7 energy property described in     
paragraph 7#c77;,a77ix7 but only with   
respect to property the construction of 

which begins before ,january #a1 #bjbd1 
and  1  7#b7 in paragraph 7#c77;,a7--   
7,a7 in clause 7vii71 by striking or at 
the end1  7,b7 in clause 7viii71 by     
adding or at the end1 and  7,c7 by      
adding at the end the following3  7ix7  
glass which uses electricity to change  
its light transmittance properties in   
order to heat or cool a structure1  1   
and  7#c7 in paragraph 7#f71 by striking
 paragraph 7#c77;,a77i7 each place it   
appears and inserting clause 7i7 or 7ix7
 of paragraph 7#c77;,a74  7b7 ,effective
 date ,the amendments made by this      
section shall apply to taxable years    
beginning after the date of the         
enactment of this ,act4