The board of commissioners of any drainage district of the State of Mississippi organized and existing under and by virtue of this chapter, which embraces lands in three or more counties in the State of Mississippi and which supplies an outlet for the water of three or more drainage districts draining tributary streams, in its discretion may, by resolution adopted at any meeting of said board and spread upon its official minutes, declare its proposal and intent to combine the territory of all of the drainage districts for which it supplies a drainage outlet, hereinafter referred to as tributary drainage districts, with the territory of the district supplying said outlet so as to form a single consolidated drainage district embracing the territory of all of the said drainage districts to be under the governing authority of a single board.
The same discretionary authority shall also be vested in the board of commissioners of a drainage district of the State of Mississippi meeting the following qualifications:
Also, the same discretionary authority is vested in the board of drainage commissioners of any drainage district of the State of Mississippi located in one or more counties meeting only the qualifications of subsection (a) of this section whose drainage canal supplies an outlet for the water of one or more tributary drainage districts.
Miss. Code § 51-29-145