The WCO has published the 2019 edition of the Authorized Economic Operator (AEO) Compendium, an annually updated study which gives an overview of existing AEO programmes (already implemented or under development or implementation) around the world, comprising information on accreditation criteria, procedures and benefits, and with a list of Mutual Recognition Arrangements/Agreements (MRAs) signed so far between countries to mutually recognize AEO authorizations granted by their respective Customs administrations.