The UNECE undertook , with cooperation from a number of governments , multi-lateral organizations , and industry , to form a CMM Experts Group ( Ad Hoc Group of Experts on Coal Mine Methane ) under the UNECE Committee on Sustainable Energy and its subsidiary body , the Ad Hoc Group of Experts on Coal in Sustainable Development . The assistance provided by US EPA shall support preparation of viable CMM investment documents for submission to one or several investment funds directly affiliated with the UNECE 's Energy Efficiency 21 ( EE21 ) Project .