Challenges and implications of EPA's proposed national ambient air quality standard for ground-level ozone and legislative hearing on S. 638, S. 751, and S. 640 :  hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Fourteenth Congress, first session, June 3, 2015. 
 Challenges and implications of Environmental Protection Agency's proposed national ambient air quality standard for ground-level ozone and legislative hearing on S. 638, S. 751, and S. 640  S. 638  S. 751  S. 640 

 - iii, 173 pages :  illustrations ;  24 cm. 
 - S. hrg. ;  114-47 .
 - United States.  Congress.  Senate.  S. hrg. ;  114-47. .
<br/><br/> Shipping list no.: 2016-0196-M.  CRDP Project record. 
<br/><br/>Includes bibliographical references. 
<br/><br/><br/>Microfiche. <br/>[Washington, D.C.] : <br/>U.S. Government Printing Office, <br/>[2016] <br/>2 microfiches : negative. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. Environmental Protection Agency --Rules and practice.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atmospheric ozone--Environmental aspects--United States.<br/>Air quality--Standards--United States.<br/>Air--Pollution--Measurement.--United States<br/>Air quality management--United States.<br/>Air--Pollution--Law and legislation--United States.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Legislative hearings.
<br/><br/><label>LC Class. No.: </label>KF26  / .E6 2015 
<br/><br/><label>GPO Item No.: </label>1045-B (MF) 
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.P 96/10:S.HRG.114-47