What is a ROCTMA? Renewables Obligation Certificates (ROCs) (see Practice Note: Renewables Obligation (RO) scheme—key features) in the UK are traded through a bilateral market. There is no prescribed form regarding trades. However, the ROC Trading Master Agreement (ROCTMA) has established itself as a standard form of ROC trading document, and is widely used by renewable electricity generators, electricity suppliers and ROC traders to document a bilateral agreement regarding the sale and purchase of ROCs. Although the Renewables Obligation is closed to new generating stations, ROCTMAs continue to be used in relation to accredited generating stations that remain eligible to receive ROCs. However, the volume of ROC trading is expected to reduce over time as generating stations cease to receive support under the Renewables Obligation regime and the market transitions towards alternative support mechanisms. A copy of the ROCTMA, published in March 2005 by the Futures and Options Association (now known as the FIA (which originally stood for Futures Industry Association)), is publicly available on the FIA website: Renewables Obligation Certificate Trading