Which of the following is not a decentralised agency?

The correct choice identifies CHAFEA as not being a decentralised agency. CHAFEA, or the Consumers, Health, Agriculture and Food Executive Agency, is an executive agency of the European Union functioning under the European Commission. Its primary responsibilities include the management of certain programs and budgets related to public health, consumer protection, and food safety, among others. Since it operates within the structure of the European Commission and implements tasks delegated by it, it does not have the independent status that characterizes decentralised agencies.

In contrast, the other options, EASO (European Asylum Support Office), Europol (European Union Agency for Law Enforcement Cooperation), and Frontex (European Border and Coast Guard Agency), are all considered decentralised agencies. These agencies operate with a level of independence from the EU's central structures, focusing specifically on their designated areas of responsibility, such as asylum support, law enforcement cooperation, and border management. Their decentralised nature allows them to function more autonomously, engaging directly with member states and stakeholders in their respective domains.