§  69.402   Operating taxes (Account 7200).

   (a) Federal income taxes, state and local income taxes, and state and
   local gross receipts or gross earnings taxes that are collected in lieu
   of a corporate income tax shall be apportioned among the interexchange
   category, the billing and collection category and all access elements
   based on the approximate net taxable income on which the tax is levied
   (positive or negative) applicable to each element and category.

   (b) All other operating taxes shall be apportioned among the
   interexchange category, the billing and collection category and all
   access elements in the same manner as the investment apportioned to
   each element and category pursuant to § 69.309 Other Investment.