Except as provided in Sec. Sec. 69.412, 69.413, and 69.414, expenses that are not apportioned pursuant to Sec. Sec. 69.401 through 69.409 shall be apportioned among the interexchange category and all access elements in the same manner as Sec. 69.309 Other investment. [62 FR 31639, June 11, 1997]