Del. Code tit. 3 § 7332
When 75 percent of the cattle owners in any county, hundred, district, or other designated area have tested herds of cattle or have made application to have their herds tested and are sufficiently interested in the work to cooperate with the Department of Agriculture to the extent of making such county, hundred, district, or other designated area become a "modified accredited area," and to comply with the state and federal regulations in order to keep their own herds clean and to bring into such area only cattle which have been tested in accordance with the state and federal regulations, the Department of Agriculture may, when it deems such action advisable and expedient, serve notice that such area shall be placed under quarantine and the Department shall commence Bang's disease testing under the area plan without expense to the owner, to the extent of funds available, providing the owners agree to comply with this subchapter and all orders, rules and regulations formulated thereunder.
3 Del. C. § 7332