PORTLAND — The Portland International Jetport is earning high praise from the aviation industry for its customer service and commitment to sustainability.

The Maine airport was among seven from around the world to receive an Airports Going Green award from the Chicago Department of Aviation.

The jetport in 2012 completed a 137,000-square-foot addition with a new ticketing hall, security checkpoint, concessions, four new gates, ticketing offices, and baggage handling system, which received LEED Gold certification.

The jetport also ranked high among North America’s peer airports in overall operation and customer satisfaction, according to the ASQ Survey, an airport customer satisfaction benchmark program. Portland took top honors in 17 of 34 applicable categories, including overall satisfaction among all passengers. Portland also scored high for parking facilities, waiting times, and staff helpfulness.