Tennessee Code Title 65. Public Utilities and Carriers § 65-3-106

(a) The department of transportation shall inform itself fully and thoroughly in regard to the affairs of every company doing business in this state, and under its jurisdiction. It shall cause to be prepared suitable blanks with questions calculated to elicit all information concerning same, and, as often as may be necessary, furnish the blanks to each such company.

(b) Each company receiving from the department of transportation any such blanks shall cause the same to be properly filled out, so as to answer fully and correctly each question therein propounded, and in case such company is unable to answer any question, it shall give a satisfactory reason for its failure, and the answer, duly sworn to by the proper officer of the company, shall be returned to the department of transportation at its office in Nashville within thirty (30) days from the receipt of same.