The Fisheries Department issued one standard guide for removing invasive tilapia (ปลาหมอคางดำ). Group 1: rod, nets, traps, fyke nets, and non-motorised trawl/push nets can be used without permission, but not for hauling ashore, encircling catches, or during the spawning/nursery season. Group 2: motorised push nets, chemical (กากชา) and large nets need a provincial fisheries committee approval or must be run by officials; electrofishing is banned for the public. Group 3: folding "ไอ้โง่" traps and phong-phang (โพงพาง) remain fully banned. Provinces can adapt the rules locally. If you fish or work in affected waterways, check which group your gear falls into before using it.