Tennessee Code Title 50. Employer and Employee § 50-2-112

(a)(1)(A) Unless required by state or federal law, all additional wage or employment benefit mandates imposed on private employers by a local government are hereby preempted.

(B) Notwithstanding a charter, ordinance, or resolution to the contrary, a local government shall not require, as a condition to doing business within the jurisdictional boundaries of the local government or contracting with the local government, a private employer to pay its employees an hourly wage in excess of the minimum hourly wage required to be paid by such employer under applicable federal or state law, nor does a local government have the authority to impose a wage or employment benefit mandate on a private employer.

(C) A local government entity shall not, through its purchasing or contracting procedures, seek to control or affect the wages or employment benefits provided by its vendors, contractors, service providers, or other parties doing business with the local government. A local government shall not, through the use of evaluation factors, qualifications of bidders, or otherwise award preferences on the basis of wages or employment benefits provided by its vendors, contractors, service providers, or other parties doing business with the local government.

(D) A local government may offer its own employees wage and employment benefits.