20:10:28:42Apportionment of cost of intrastate private line circuits and message circuits.

An average interexchange circuit equipment cost per equivalent interexchange telephone termination for all circuits is determined and applied to the equivalent interexchange telephone termination counts of each of the following classes of circuits: intrastate private line and message. The cost of intrastate private line circuits is assigned directly to the applicable operation. The intrastate cost of message circuits is apportioned between toll and other services based on the relative number of conversation-minutes applicable to such facilities.

Source: 19 SDR 111, effective January 31, 1993.