47 CFR § 69.153 - Presubscribed interexchange carrier charge (PICC).
(a) A charge expressed in dollars and cents per line may be assessed upon the Multi-line business subscriber's presubscribed interexchange carrier to recover revenues totaling Average Price Cap CMT Revenues per Line month times the number of base period lines less revenues recovered through the End User Common Line charge established under § 69.152 and Interstate Access Universal Service Support Per Line (as defined in § 54.807 of this chapter) multiplied by base period lines for the applicable customer class and zones receiving such support, up to a maximum of $4.31 per line per month. In the event the ceilings on the PICC prevent the PICC from recovering all the residual common line/marketing and residual interconnection charge revenues, the PICC shall recover all residual common line/marketing revenues before it recovers residual interconnection charge revenues.
(e) The maximum monthly PICC for Centrex lines shall be one-ninth of the maximum charge determined under paragraph (a) of this section, except that if a Centrex customer has fewer than nine lines, the maximum monthly PICC for those lines shall be the maximum charge determined under paragraph (a) of this section divided by the customer's number of Centrex lines.
(f) The PICC shall not be applicable to any payphone lines.