Kan. Stat. § 2-1327
It shall be unlawful for any person, company or corporation to (1) bring any harvesting or threshing machinery, portable feed grinders, portable seed cleaners, or field ensilage cutters or other farm vehicles or machinery into the state without first cleaning such equipment free from all weed seed and litter, or (2) to move any harvesting or threshing machines, portable feed grinders, portable seed cleaners or field ensilage cutters from any field or farm infested with any noxious weed without first cleaning such equipment free from all weed seed and litter. Each such machine operated by a person doing work for another shall be labeled with an appropriate label on a form provided by the secretary of agriculture containing this section of the law.
K.S.A. 2-1327