The Eleventh Meeting of the Parties decided to continue to give full consideration to ways to expedite the procedure for adding new substances and their associated control measures to the Protocol and for removing them therefrom.
(UNEP/OzL.Pro.11/10, Decision XI/20).
The Thirteenth Meeting of the Parties decided to request the Ozone Secretariat to compile precedents in other Conventions regarding the procedures for adding new substances and to provide a report at the 22nd Meeting of the Open-ended Working Group, in 2002.
(UNEP/OzL.Pro/13/10, Decision XIII/6).