(a)-(d) [Reserved]

(e) A Provider must not charge a per-minute rate for international audio Incarcerated People's Communications Services in each Prison or Jail it serves in excess of the applicable interim interstate and intrastate cap set forth in § 64.6030 plus the average amount that the Provider paid its underlying international service providers for audio communications to the International Destination of that communication, on a per-minute basis. A Provider shall determine the average amount paid for communications to each International Destination for each calendar quarter and shall adjust its maximum rates based on such determination within one month of the end of each calendar quarter.