National Treasury included the use of carbon offsets as a relief mechanism in the proposed tax system. Carbon offsets are carbon credits, generated in South Africa, that can be sold to carbon tax payers to reduce their carbon tax liability. The Department of Energy has developed the administration system for these offsets. These carbon offsets will create an estimated market of between 10 and 20 million tons of CO2 per year, while providing investment for real mitigation projects throughout South Africa.