20:10:29:18Apportionment of net investment -- General.

For purposes of computing annual revenue requirements for access elements, net investment is apportioned among the interexchange category, the billing and collection category, the special access category, and switched access elements as provided in §§ 20:10:29:19 to 20:10:29:31, inclusive. Expenses are apportioned as provided in §§ 20:10:29:32 to 20:10:29:48, inclusive.

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