§ 51.511   Forward-looking economic cost per unit.

   (a) The forward-looking economic cost per unit of an element equals the
   forward-looking economic cost of the element, as defined in § 51.505, divided
   by a reasonable projection of the sum of the total number of units of the
   element  that  the  incumbent  LEC  is likely to provide to requesting
   telecommunications carriers and the total number of units of the element
   that the incumbent LEC is likely to use in offering its own services, during
   a reasonable measuring period.

   (b)(1) With respect to elements that an incumbent LEC offers on a flat-rate
   basis, the number of units is defined as the discrete number of elements
   (e.g., local loops or local switch ports) that the incumbent LEC uses or
   provides.

   (2)  With  respect  to  elements  that  an  incumbent  LEC offers on a
   usage-sensitive  basis,  the number of units is defined as the unit of
   measurement of the usage (e.g., minutes of use or call-related database
   queries) of the element.

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