Tenn. Code Ann. § 67-1-511

The state board of equalization, subject to proper rules and regulations to be published and furnished to every assessing official, has the power to invalidate the certificate of any assessor or deputy assessor who willfully fails or refuses to perform such person's duties faithfully in accordance with the rules, regulations and instructions promulgated and issued by the state board of equalization, its manuals of assessment and the laws of the state governing the assessment of property and the duties of each assessor and deputy assessor.