The Animal and Plant Health Agency (APHA) is an executive agency of the Department for Environment, Food & Rural Affairs (DEFRA). APHA is responsible for identifying and controlling endemic and exotic diseases and pests in animals, plants and bees, and surveillance of new and emerging pests and diseases. It also facilitates international trade in animals, products of animal origin and plants, protecting endangered wildlife through licensing and registration. APHA regulates the safe disposal of animal by—products to reduce the risk of potentially dangerous substances entering the food chain.
For further information, please refer to GOV.UK, or the Live Animal Movements Guide.