The Gold Standard for CDM (GS CER) was developed in 2003 by World Wide Fund for Nature (WWF), SouthSouthNorth, and Helio International. The Voluntary Gold Standard (GS VER), a methodology for use within the voluntary carbon market, was launched in May 2006. Both were the result of an extensive 12-month workshop and web-based consultation process conducted by an independent Standards Advisory Board composed of NGOs, scientists, project developers and government representatives. The Gold Standard is open to any non-government, community based organization especially those with an interest in the promotion of sustainable development or a focus on climate and energy issues. As of March 2009, 60 environmental and development non-profit organizations internationally officially endorse The Gold Standard. These organizations support The Gold Standard as an effective tool for creating high-quality emission reduction projects that promote sustainable development and benefit local communities. The Gold Standard is headquartered in the BASE (Basel Agency for Sustainable Energy) offices in Basel, Switzerland, with offices in Geneva, Rome and San Francisco. It employs local experts in Brazil, China, India and South Africa.