A bill to suspend temporarily the duty on certain drug substances used as an HIV antiviral drug.

SECTION 1. TEMPORARY DUTY SUSPENSIONS ON CERTAIN HIV DRUG SUBSTANCES.

    (a) In General.--Subchapter II of chapter 99 of the Harmonized 
Tariff Schedule of the United States is amended by inserting in 
numerical sequence the following new headings:

      

``    9902.32.14    (S)-N-tert-butyl-                                                                           
                     1,2,3,4-                                                                                   
                     tetrahydro-3-                                                                              
                     isoquinoline                                                                               
                     carboxamide                                                                                
                     (CAS No. 149182-                                                                           
                     72-9)(provided                                                                             
                     for in                                                                                     
                     subheading                                                                                 
                     2933.40.60)....  Free              No change         No change         On or before  6/    
                                                                                             30/99              
      9902.32.16    (S)-N-tert-butyl-                                                                           
                     1,2,3,4-                                                                                   
                     tetrahydro-3-                                                                              
                     isoquinoline                                                                               
                     carboxamide                                                                                
                     hydrochloride                                                                              
                     salt (CAS No.                                                                              
                     149057-17-0)(pr                                                                            
                     ovided for in                                                                              
                     subheading                                                                                 
                     2933.40.60)....  Free              No change         No change         On or before  6/    
                                                                                             30/99              
      9902.32.18    (S)-N-tert-butyl-                                                                           
                     1,2,3,4-                                                                                   
                     tetrahydro-3-                                                                              
                     isoquinoline                                                                               
                     carboxamide                                                                                
                     sulfate salt                                                                               
                     (CAS No. 186537-                                                                           
                     30-4)(provided                                                                             
                     for in                                                                                     
                     subheading                                                                                 
                     2933.40.60)....  Free              No change         No change         On or before  6/    
                                                                                             30/99              
      9902.32.20    (3S)-1,2,3,4-                                                                               
                     tetrahydroisoqu                                                                            
                     inoline-3-                                                                                 
                     carboxylic acid                                                                            
                     (CAS No. 74163-                                                                            
                     81-8)(provided                                                                             
                     for in                                                                                     
                     subheading                                                                                 
                     2933.40.60)....  Free              No change         No change         On or before  6/    
                                                                                             30/99              
                                                                                                              ''

    (b) Effective Date.--The amendment made by subsection (a) applies 
with respect to goods entered, or withdrawn from warehouse for 
consumption, on or after the date that is 15 days after the date of 
enactment of this Act.

Summary: Amends the Harmonized Tariff Schedule of the United States to suspend, through June 30, 1999, the duty on certain drug substances used as HIV antiviral drugs:  (1) (S)-N-tert-butyl-1,2,3,4-tetrahydro- 3-isoquinoline carboxamide; (2) (S)-N-tert-butyl-1,2,3,4-tetrahydro-3- isoquinoline carboxamide hydrochloride salt; (3) (S)-N-tert-butyl- 1,2,3,4- tetrahydro-3-isoquinoline carboxamide sulfate salt; and (4) (3S)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid.