The Eleventh Meeting of the Parties decided:
1. to recall that decision X/8 requested Parties that, should new substances be developed and marketed which, following application of decision IX/24, are agreed by the Parties to pose a significant threat to the ozone layer, appropriate steps are taken under the Montreal Protocol to ensure their control and phase-out;
2. to note that many new chemicals are brought into the market by the chemical industry so that criteria for assessing the potential ODP of these chemicals will be useful;
3. to request the Scientific Assessment Panel and the Technology and Economic Assessment Panel:
(a) to develop criteria to assess the potential ODP of new chemicals;
(b) to develop a guidance paper on mechanisms to facilitate public-private sector co-operation in the evaluation of the potential ODP of new chemicals in a manner that satisfies the criteria to be set by the Panels;
4. to request the Panels to report back to the Thirteenth Meeting of the Parties.
(UNEP/OzL.Pro.11/10, Decision XI/19).