Sec. 51.315  Combination of unbundled network elements.

    (a) An incumbent LEC shall provide unbundled network elements in a 
manner that allows requesting telecommunications carriers to combine 
such network elements in order to provide a telecommunications service.
    (b) Except upon request, an incumbent LEC shall not separate 
requested network elements that the incumbent LEC currently combines.
    (c) Upon request, an incumbent LEC shall perform the functions 
necessary to combine unbundled network elements in any manner, even if 
those elements are not ordinarily combined in the incumbent LEC's 
network, provided that such combination is:
    (1) Technically feasible; and
    (2) Would not impair the ability of other carriers to obtain access 
to unbundled network elements or to interconnect with the incumbent 
LEC's network.
    (d) Upon request, an incumbent LEC shall perform the functions 
necessary to combine unbundled network elements with elements possessed 
by the requesting telecommunications carrier in any technically feasible 
manner.
    (e) An incumbent LEC that denies a request to combine elements 
pursuant to paragraph (c)(1) or paragraph (d) of this section must prove 
to the state commission that the requested combination is not 
technically feasible.
    (f) An incumbent LEC that denies a request to combine elements 
pursuant to paragraph (c)(2) of this section must prove to the state 
commission that the requested combination would impair the ability of 
other carriers to obtain access to unbundled network elements or to 
interconnect with the incumbent LEC's network.