Tennessee Code Title 8. Public Officers and Employees § 8-30-203

(a) The commissioner, after consulting with appointing authorities and other qualified authorities, shall determine, or cause to be determined, the authority, duties, and responsibilities of all positions in the state preferred service.

(b) The commissioner shall prepare a classification plan that groups all positions in the preferred service in classes, based on the authority, duties, and responsibilities of each position. The classification plan must set forth, for each class of positions, the class title and a statement of the authority, duties, and responsibilities of the class. Each class of positions may be subdivided, and classes may be grouped and ranked in such manner as the commissioner considers appropriate.

(c) The commissioner shall periodically:

(d) The commissioner shall also prepare a statement of minimum qualifications for each class of positions in the preferred service.

(e) When any position classification is upgraded in the classification plan, all employees in that position classification shall receive any necessary salary adjustment so that the employee's salary does not fall below the minimum range of the classification.