Sec. 51.609  Determination of avoided retail costs.

    (a) Except as provided in Sec. 51.611, the amount of avoided retail 
costs shall be determined on the basis of a cost study that complies 
with the requirements of this section.
    (b) Avoided retail costs shall be those costs that reasonably can be 
avoided when an incumbent LEC provides a telecommunications service for 
resale at wholesale rates to a requesting carrier.
    (c) For incumbent LECs that are designated as Class A companies 
under

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