Mississippi Code Title 41. Public Health § 41-27-23

The board of supervisors of each county so combined in such joint agreement shall, at the time of making and approving the budget of such county for the ensuing year, clearly state the amount of funds to be applied to mosquito control work under the authority of such joint agreement. It shall be the duty of the clerk of each board of supervisors, upon the fixing and approving of such budget, to notify by letter addressed to the presidents of the boards of supervisors of each other county included in such joint activity the amount provided for such mosquito control work in said budget. In event any county included in such joint activity by its board of supervisors should be dissatisfied with the amount of funds allocated by any other county within such group for the aforesaid purpose, such county shall have the right, by order spread upon its minutes and a copy thereof mailed to the president of the board of supervisors of each other county in such joint agreement, of the withdrawal of such dissatisfied county from said agreement and, insofar as such dissatisfied county shall be concerned, the said agreement shall be terminated.