Tennessee Code Title 68. Health, Safety and Environmental Protection § 68-201-119

(a) The Tennessee air pollution control board shall promulgate rules that:

(c) An inspection and maintenance program may be employed in a county that, on May 15, 2018, has a local air pollution control program and implements its own inspection and maintenance program, if the county authorizes the continuation of its own inspection and maintenance program by action of its governing body; provided, that in order to authorize the continuation of the inspection and maintenance program, the governing body must authorize the continuation within thirty (30) days of May 15, 2018, and the presiding officer of the county governing body must furnish a certified copy of the approved resolution to the technical secretary of the air pollution control board within sixty (60) days of May 15, 2018.

(d) Any new contract between the department or a local government and a contractor providing inspection services, any new contract between a local government and the department relative to the inspection and maintenance program, and any renewals of such contracts occurring after May 15, 2018, shall include a provision stating that the contract must conform to any changes in state law. Any existing contracts as described in this section shall be amended to include a provision stating that the contract must conform to any changes in state law.