No operator of a crematory facility shall require a person to be cremated in a casket; provided, that in the discretion of the operator of a crematory facility, a container composed of readily combustible materials that is suitable for cremation, other than a casket, may be required.
Cremation without a casket
Tenn. Code Ann. § 62-5-512, under Cremation.
Tenn. Code Ann. § 62-5-512