Transboundary plant pests and diseases threaten food and nutrition security and adversely affect trade and the agricultural sector’s competitiveness. In the Southern African Development Community (SADC) Member States, the five key priority pests include Maize lethal necrosis disease (MLN), Tomato leaf miner (Tuta (Phthorimaea) absoluta), Oriental Fruit Fly (Bactrocera dorsalis), Fall armyworm (FAW Spodoptera frugiperda), and Banana Fusarium Wilt (Fusarium oxysporum f. sp. Cubense Tropical race 4 (Foc TR4)). In this project, CABI is supporting the FAO-led Support towards operationalization of the SADC Regional Agricultural Policy (STOSAR) project to strengthen national and regional capacities to prevent entry, control spread and manage these priority plant pests and diseases. The project will seek to support Member States in reviewing and developing harmonized national strategies for the key pests while providing training on Pest Risk Analysis (PRA) and implementing applicable Sanitary and Phytosanitary (SPS) measures.