§  36.321   Central office expenses--Accounts 6210, 6220, and 6230 (Class B
telephone companies); Accounts 6211, 6212, 6220, 6231, and 6232 (Class A
telephone companies).

   (a) The expenses related to central office equipment are summarized in
   the following accounts:
   Central Office Switching Expense Account 6210 (Class B telephone
   companies); Accounts 6211 and 6212 (Class A telephone companies).
   Operator Systems Expense Account 6220.
   Central Office Transmission Expense Account 6230 (Class B telephone
   companies); Accounts 6231 and 6232 (Class A telephone companies).

   (b) The expense in these accounts are apportioned among the operations
   on the basis of the separation of the investments in central office
   equipment. Accounts 2210, 2220 and 2230, combined.

   [ 52 FR 17229 , May 6, 1987, as amended at  69 FR 12552 , Mar. 17, 2004]

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