Tenn. Code Ann. § 67-5-1330: Special assessment on notice by state board

(a) If at any time it shall appear to the satisfaction of the state board of equalization that any company, whose property is assessable under this part, is inadequately assessed, or that its property has been omitted from taxation, it shall be its duty to notify the comptroller of the treasury thereof in writing, whereby the comptroller of the treasury shall make the proper assessment, and the assessment shall go to the board as upon appeal upon the records, as it is provided in cases of assessments in the first instance.

(b) The board shall examine and act upon such record as soon as practicable and certify its final action to the comptroller of the treasury, the collection of the taxes so assessed to be then proceeded with according to the regular course.