This Supplementary Discussion Paper was prepared by the Department of Climate Change and Energy Efficiency as part of the National Strategy on Energy Efficiency (NSEE). The Department of Climate Change and Energy Efficiency (DCCEE) has released this Supplementary Discussion Paper to canvass a range of design features of the proposed national legislation for Minimum Energy Performance  Standards (MEPS) and energy labelling for equipment and appliances. In particular, this Supplementary Discussion Paper explores how compliance obligations could be imposed and enforced under the national legislation.