Sustainable Otautahi Christchurch (SOC) is an incorporated membership society, formed in 2005, which carries on the vision of two previous local voluntary organisations, Sustainable Cities Trust and Christchurch-Otautahi Agenda 21 Forum. Former members of both those groups are involved, along with a new generation of Christchurch people, who work towards the bold vision of Christchurch people “practicing, living and demonstrating sustainability in all that they do.”