Tennessee Code Title 50. Employer and Employee § 50-6-414

(a) Any employer who is assigned an experience modification factor for the purpose of determining its workers' compensation premium shall be sent annually, at no charge to the employer, a copy of any information relative to its experience modification factor that is available to an insurance company.

(b) If the experience modification factor notification is not received by the employer prior to the policy renewal date, or the policy anniversary date if different, the experience modification factor shall not be used for premium purposes if its use results in a higher premium for the employer. The mailing of the experience modification factor worksheet shall be sufficient proof of notice, provided the mailing is by certified mail, return receipt requested.