In May 2016, Greater Moncton Roméo LeBlanc International Airport (GMIA) achieved certification under the international Airport Carbon Accreditation Program. This program, launched in 2009, provides a standard framework for airports around the world to map and reduce their carbon footprint.

By achieving Level 1, GMIA has had their carbon footprint verified by a third party and has committed to reducing carbon emissions going forward. The airport will be working toward Level 2 (Reduction) certification in the near future for which a demonstrated reduction in carbon emissions is required.

Airport Carbon Accreditation is the only institutionally endorsed, carbon management certification standard for airports and it is a global initiative endorsed by Airport Council International (of which GMIA is a member airport).