The European Securities and Markets Authority (ESMA) has launched a Discussion Paper to prepare the regulatory technical standards (RTS) which will implement provisions of the European Markets Infrastructure Regulation (EMIR) regarding the obligation to centrally clear OTC derivatives.
Details via press release: http://www.esma.europa.eu/news/Press-Release-ESMA-begins-detailing-central-clearing-OTC-derivatives?t=326&o=page%2Fesma-press-area