Carbon offsets can play a critical role in climate policy by reducing the economy-wide costs of mitigating greenhouse gas emissions and generating important social and environmental cobenefits. However, the benefits of offsets are contingent on integrity – the offsets must represent real and additional greenhouse gas abatement. There are serious integrity issues with Australia’s carbon offset scheme. Weak governance structures have resulted in deficiencies in the design and administration of the scheme. The problems with the scheme have been detailed in a series of papers published by the Australian National University (ANU) and University of New South Wales, Canberra (UNSW) Emissions Reduction Fund (ERF) research team and other groups.