Tennessee Code Title 55. Motor and Other Vehicles § 55-4-406

(a) A permit is required for the transport of any mobile home exceeding eight feet six inches (8′ 6″) in width. Transport of mobile homes exceeding eighteen feet (18′) in width are not permitted. Permits authorized pursuant to this section may be issued on either a short-term basis or an annual basis for movements not exceeding sixteen feet (16′) in width. Movements in excess of sixteen feet (16′) in width may be permitted only on a single-trip basis and shall be escorted in accordance with § 55-4-110. Single-trip permits are valid for six (6) days from the date of issuance. Annual permits are valid for three hundred sixty-five (365) days from the date of issuance.

(b) The fee schedule for permits issued pursuant to this section is as follows: