In Australia, a state or local government can require that sustainability measures be put in place. In New South Wales (NSW), the Building Sustainability Index (BASIX) sets sustainability targets for water and energy, applicable to new or refurbished residential developments. BASIX imposed targets relating to the reduction in potable water consumption and greenhouse gas emissions, determined from the NSW average residential water, electricity and gas consumption data collected from energy utilities. While the BASIX requirements do not apply to nonresidential buildings, a state government could adopt these rules to apply to all buildings. Local councils also have the ability to require that proposed buildings comply with a number of green initiatives. They are constrained by the planning statutes in place as to what standards they can impose on developers. However, within their framework, they have broad discretion and can impose higher environmental standards to make buildings more sustainable.