Tennessee Code Title 4. State Government § 4-31-711

(a) At least ninety (90) days prior to the beginning of each state fiscal year, the grantee shall submit a plan of operation for review and approval to the commissioners of mental health and substance abuse services, intellectual and developmental disabilities, health and finance and administration and the comptroller of the treasury. The plan of operation shall be in such form as may be required by the department and shall include, but not be limited to:

(b) The plan of operation may be amended during a fiscal year with the written approval of the commissioners of mental health and substance abuse services, intellectual and developmental disabilities, health and finance and administration and the comptroller of the treasury.