To ensure its continued success, The Conference of the Parties (COP) to the Vienna Convention was established to bring together all contracting Parties to the Convention. The main function of the Conference of the Parties is to continuously review the implementation of the Convention, review scientific information on the ozone layer, and promote and coordinate appropriate policies, strategies and measures for minimizing the release of harmful substances that cause or are likely to cause changes to the ozone layer.
The COP also makes recommendations on any other matters relating to the Convention. Additionally, the Conference of the Parties is responsible for the adoption of its rules of procedure, financial rules for any subsidiary bodies it may establish and financial provisions governing the functions of the Secretariat. At its second meeting in 1990, it was decided that beginning in 1993 the Conference of the Parties would meet every three years.