Why was $30 per month selected as the monthly Intervention Fee?

The average fee charged by other states determined in the 2001 survey noted above, was in the $30.00 range. Also in a 1988 study (“Probation Supervision Fees, Shifting Costs to the Offender”, 1988, Charles R. Mass), indicated the “optimal fee” rate was identified as $15-$17. On an inflation adjusted basis (1988 to 2013), the $15 to $17 fee equates to $29.65 - $33.61. The $30 per month fee, given the various waivers/exemptions that are available, was viewed as consistent with the optimal fee rate.