Tennessee Code Title 40. Criminal Procedure § 40-39-305

(a) The department of correction is authorized to assess a daily or monthly fee, as the department deems reasonable and necessary to effectuate the purposes of this program, from serious offenders and violent sexual offenders who are required by the board or the department to participate in the sexual offender monitoring program described in § 40-39-302. This fee is intended to offset only the costs associated with the time-correlated tracking of the geographic location of subjects using the location tracking crime correlation system. Fees assessed by the department pursuant to this program may be collected in accordance with § 40-39-302(b)(2)(A).

(b) The department may waive all or any portion of the fees required by this section if it determines that an offender is indigent or financially unable to pay all or any portion of the fee. The department shall waive only that portion of the surcharge which the offender is financially unable to pay.