===============================================================================
SIGNATORY COUNTRIES    SIGNATURE REF   RA/AC/AD REF   DEPOSIT INST  INFORMA REF
===============================================================================
Antigua and Barbuda .   12/03/81       12/03/81       12/03/81 RA     /  /     
Argentina ...........   04/30/48       01/19/56       04/10/56 RA     /  /     
Bahamas (Commonwealth   03/03/82       03/01/82       03/03/82 RA     /  /     
Barbados ............   10/09/67       11/14/67       11/15/67 RA     /  /     
Belize ..............   01/08/91       01/08/91       01/08/91 RA     /  /     
Bolivia .............   04/30/48       09/25/50 D  a  10/18/50 RA     /  /     
Brazil ..............   04/30/48       02/11/50       03/13/50 RA     /  /     
Canada ..............   11/13/89       12/20/89       01/08/90 RA     /  /     
Chile ...............   04/30/48       05/05/53       06/05/53 RA     /  /     
Colombia ............   04/30/48       12/07/51       12/13/51 RA     /  /     
Costa Rica ..........   04/30/48       10/30/48       11/16/48 RA     /  /     
Cuba ................   04/30/48       07/08/52       07/16/52 RA     /  /     
Dominica (Commonwealth  05/22/79       05/22/79       05/22/79 RA     /  /     
Dominican Republic ..   04/30/48       04/11/49       04/22/49 RA     /  /     
Ecuador .............   04/30/48       12/21/50       12/28/50 RA     /  /     
El Salvador .........   04/30/48       08/15/50       09/11/50 RA     /  /     
Grenada .............   05/13/75       05/13/75       05/13/75 RA     /  /     
Guatemala ...........   04/30/48       03/18/51  R c  04/06/55 RA     /  /     
Guyana ..............   01/08/91       01/08/91       01/08/91 RA     /  /     
Haiti ...............   04/30/48       08/21/50       03/28/51 RA     /  /     
Honduras ............   04/30/48       01/13/50       02/07/50 RA     /  /     
Jamaica .............   06/27/69       08/07/69       08/20/69 RA     /  /     
Mexico ..............   04/30/48       11/23/48       11/23/48 RA     /  /     
Nicaragua ...........   04/30/48       06/21/50       07/26/50 RA     /  /     
Panama ..............   04/30/48       03/16/51       03/22/51 RA     /  /     
Paraguay ............   04/30/48       03/30/50       05/03/50 RA     /  /     
Peru ................   04/30/48       05/15/52  R d  02/12/54 RA     /  /     
Saint Lucia .........   05/22/79       05/22/79       05/22/79 RA     /  /     
Saint Vincent and the   12/03/81       12/03/81       12/03/81 RA     /  /     
St. Kitts and Nevis..   03/12/84       03/12/84       03/12/84 RA     /  /     
Suriname ............   02/22/77       06/01/77       06/08/77 RA     /  /     
Trinidad and Tobago .   03/13/67       03/14/67       03/17/67 RA     /  /     
United States .......   04/30/48       06/15/51  R b  06/19/51 RA     /  /     
Uruguay .............   04/30/48       08/17/55       09/01/55 RA     /  /     
Venezuela ...........   04/30/48       12/21/51       12/29/51 RA     /  /     
===============================================================================
REF = REFERENCE                                      INST = TYPE OF INSTRUMENT
       D = DECLARATION                                      RA = RATIFICATION
       R = RESERVATION                                      AC = ACCEPTANCE
INFORMA  = INFORMATION REQUIRED BY THE TREATY               AD = ACCESSION