Title IV, SEC. 4117. IMPOSITION OF COINSURANCE ON LABORATORY SERVICES. 
      (a) In General. Paragraphs (1)(D) and (2)(D) of section 1833(a) (42 
    U.S.C. 1395l(a)) are each amended 

        (1) by striking ``(or 100 percent'' and all that follows through ``the 
      first opinion))''; and 

        (2) by striking ``100 percent of such negotiated rate'' and inserting 
      ``80 percent of such negotiated rate''. 

      (b) Effective Date. The amendments made by subsection (a) shall apply to 
    tests furnished on or after January 1, 1995.