Any defendant who is sentenced to a treatment program pursuant to section 18-6-801 or who is ordered to complete an evaluation pursuant to section 18-6-801 (1) shall pay for the evaluation and treatment programs on a sliding fee basis, as provided in the standardized procedures for the treatment evaluation of domestic violence offenders and the guidelines and standards for a system of programs for the treatment of domestic violence offenders adopted by the domestic violence offender management board pursuant to section 16-11.8-103, C.R.S.