- 15 - State party Date on which the report was due Fourth periodic reports Afghanistan Argentina Belarus Belize Bulgaria Cameroon France Hungary Mexico Philippines Russian Federation Senegal Switzerland Uganda Uruguay Canada Austria Panama Luxembourg Togo Colombia Ecuador 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 25 June 2000 23 July 2000 27 August 2000 22 September 2000 28 October 2000 17 December 2000 6 January 2001 28 April 2001 24. The Committee expressed concern at the number of States parties which did not comply with their reporting obligations. With regard in particular to States parties whose reports were more than four years overdue and to whom several reminders had been sent by the Secretary-General, the Committee deplored the continued failure of those States parties to comply with the obligations they had freely assumed under the Convention. The Committee stressed that it had the duty to monitor the implementation of the Convention and that the non-compliance of a State party with its reporting obligations constituted an infringement of the provisions of the Convention. 25. In this connection, the Committee decided to continue its practice of making available lists of States parties whose reports were overdue during the press conferences that the Committee usually holds at the end of each session. 26. The status of submission of reports by States parties under article 19 of the Convention as at 18 May 2001, the closing date of the twenty-sixth session of the Committee, appears in annex V to the present report.