A/RES/50/79 Page 3 Preparatory Committee for that Conference has been formed, open to all parties to the Convention, and that the Committee will meet at Geneva from 9 to 12 April 1996; 5. Requests the Secretary-General to render the necessary assistance and to provide such services as may be required for the Fourth Review Conference and its preparations; 6. Calls upon all signatory States that have not yet ratified the Convention to do so without delay, and also calls upon those States that have not signed the Convention to become parties thereto at an early date, thus contributing to the achievement of universal adherence to the Convention; 7. Decides to include in the provisional agenda of its fifty-first session the item entitled "Convention on the Prohibition of the Development, Production and Stockpiling of Bacteriological (Biological) and Toxin Weapons and on Their Destruction". 90th plenary meeting 12 December 1995