To make it easier for the public to choose energy efficient products, EMSD operates a voluntary Energy Efficiency Labelling Scheme for appliances and equipment used both at home and office as well as for vehicles. The scheme aims to save energy by informing potential customers of the product's level of energy consumption and efficiency rating, so that buyers can take these factors into consideration when making their purchasing decision.

The scheme now covers eighteen types of household appliances and office equipment. Ten types of which are electrical appliances including refrigerators (Voluntary Scheme), washing machines, non-integrated type compact fluorescent lamps, dehumidifiers, electric clothes dryers, room coolers (Voluntary Scheme), electric storage water heaters, television sets, electric rice-cookers and electronic ballasts. The seven types of office equipment include photocopiers, fax machines, multifunction devices, laser printers, LCD monitors, computers and hot / cold bottled water dispensers. There is one type of gas appliance for domestic gas instantaneous water heaters. The scheme has also been extended to cover petrol passenger cars.

To further facilitate the public in choosing energy efficient appliances and raise public awareness on energy saving, the Government has introduced a Mandatory Energy Efficiency Labelling Scheme (MEELS) through the Energy Efficiency Labelling (Labelling of Products) Ordinance, Cap. 598.

The initial phase of the MEELS covers three types of products, namely room air conditioners, refrigerating appliances and compact fluorescent lamps, and has been fully implemented since 9 November 2009. The Voluntary Energy Efficiency Labelling Scheme for room coolers (voluntary scheme) and household refrigeration appliances (voluntary scheme) shall cover only the type of products not regulated under the Ordinance.

The second phase of the MEELS extends the coverage to two more electrical appliances, namely washing machines and dehumidifiers, and commenced on 19 March 2010 with an 18-month grace period for the trades to make necessary preparations.