The GEF is not formally linked to the Montreal Protocol but actively support its implementation. The GEF helps the countries with economies in transition to phase out their use of ozone-destroying chemicals under the terms of the Montreal Protocol. GEF support has moved from separate Chemicals Focal Areas (ODS and Persistent Organic Pollutants) to having one, fully integrated Chemicals and Waste Focal Area, including POPs, Mercury, ODS, and the Strategic Approach to International Chemicals Management.