Clean Air Act  proposed regional haze regulations : hearing before the Subcommittee on Clean Air, Wetlands, Private Property, and Nuclear Safety and the Committee on Environment and Public Works, United States Senate, One Hundred Fifth Congress, second session, April 23, 1998.  [microform] : 

 - Washington :  U.S. G.P.O. :  For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office,  1998. 
 - iii, 146 pages :  illustrations. 
 - S. hrg. ;  105-677 .
 - United States.  Congress.  Senate.  S. hrg. ;  105-677. .
<br/><br/> Shipping list no.: 1999-0275-M.  CRDP Program record. 
<br/><br/>Includes bibliographical references. 
<br/><br/><br/>Microfiche. <br/>Washington, D.C. : <br/>U.S. G.P.O., Supt. of Docs., <br/>1998. <br/>2 microfiches : negative. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution--Law and legislation--United States.<br/>National parks and reserves--Law and legislation--United States.<br/>Haze--Environmental aspects--United States.<br/>Meteorological optics--United States.<br/>Air quality--Standards--United States.
<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.105-677