The Eco-certification is the national scheme for ensuring the environmental, socioeconomic, and cultural sustainability of hotels and farmhouses on the Maltese Islands. The scheme was launched by the Malta Tourism Authority in 2002 and today represents over 16% of hotel accommodation covering 5-star, 4-star and 3-star categories. The criteria were last revised in June 2012 to be in line with the GSTC criteria making the shift from an environmental scheme to a sustainability scheme. Third party audits are carried out every two years to ensure that the hotels are meeting the requirements of the scheme.