The Nebraska Weed Control Association (NWCA) is a non-profit organization comprised of representatives known as weed control authorities in county government. By state statute known as the Nebraska Noxious Weed Control Act, each county is responsible for enforcement in their jurisdiction.

The object of this Association shall be to advance the interests of agriculture in the improvement of the weed control program in Nebraska. To promote and advance a comprehensive weed control program, concerning uniformity in services and charges; proper chemical usage and product quality and control. To take an active part in legislative measures, concerning weed control and any broadened field of subsidies. To formulate, and voice approval, or disapproval of legislative measures and when the need arises, to employ a counselor to represent the Nebraska Weed Control Association at any session in which the Legislature may act on any proposed law concerning weed control measures or amendments thereof.