The Airport Carbon Accreditation established four possible levels for accreditation: ◼ Mapping – checking of emissions under the direct control of the airport manager (scope ◼ Reduction - creation of an emission reduction plan (scope 1 and 2); ◼ Optimization – calculation of the emissions produced by the airport stakeholders and their involvement in the reduction plans (scope 3); ◼ Neutrality - the achievement of Carbon Neutrality in terms of emissions under the direct control of the airport operator (Scopes 1 and 2), with the purchase of offsets.