The Massachusetts Office of Travel & Tourism markets Massachusetts as a leisure travel destination in domestic and international markets. MA GREEN was launched in 2010 to promote Massachusetts as a green destination and to encourage hotels and other travel businesses to adopt environmentally sound practices. MA GREEN recognizes several certification programs, including Green Key Eco-Rating (level 3 and higher). It also provides links from to hotels’ web content that detail their sustainable practices. Go to for program details and to find information on energy, water, and solid waste resources that are available to hotels.