Tenn. Code Ann. § 49-2-703

Any LEA meeting a majority of the applicable criteria in § 49-2-102 may, by action of its local board of education, declare itself to be a high performing school district. Such designation shall be in effect beginning July 1 following the local board action. The designation shall last for three (3) years, at which time the LEA shall be eligible to declare itself a high performing school district under this part again if a majority of the criteria are met.