The World Customs Organization (WCO) and the International Association of Ports and Harbors (IAPH) jointly released the Guidelines on Cooperation between Customs and Port Authorities on the occasion of the IAPH 2023 World Ports Conference which opened on 31 October in Abu Dhabi, United Arab Emirates. The Guidelines mainly focus on digitalization of data flows between the two authorities, but also outline methods to institutionalize cooperation, establish a data governance policy and ensure a mutual understanding of each other’s business, given the fact that these two administrations share common areas of responsibility and risks.