Sec. 51.321  Methods of obtaining interconnection and access to 
          unbundled elements under section 251 of the Act.

    (a) Except as provided in paragraph (e) of this section, an 
incumbent LEC shall provide, on terms and conditions that are just, 
reasonable, and nondiscriminatory in accordance with the requirements of 
this part, any technically feasible method of obtaining interconnection 
or access to unbundled network elements at a particular point upon a 
request by a telecommunications carrier.
    (b) Technically feasible methods of obtaining interconnection or 
access to unbundled network elements include, but are not limited to:
    (1) Physical collocation and virtual collocation at the premises of 
an incumbent LEC; and
    (2) Meet point interconnection arrangements.
    (c) A previously successful method of obtaining interconnection or 
access to unbundled network elements at a particular premises or point 
on an incumbent LEC's network is substantial evidence that such method 
is technically feasible in the case of substantially similar network 
premises or points.
    (d) An incumbent LEC that denies a request for a particular method 
of obtaining interconnection or access to unbundled network elements on 
the incumbent LEC's network must prove to the state commission that the 
requested method of obtaining interconnection or access to unbundled 
network elements at that point is not technically feasible.
    (e) An incumbent LEC shall not be required to provide for physical 
collocation of equipment necessary for interconnection or access to 
unbundled network elements at the incumbent LEC's premises if it 
demonstrates to the state commission that physical collocation is not 
practical for technical reasons or because of space limitations. In such 
cases, the incumbent LEC shall be required to provide virtual 
collocation, except at points where the incumbent LEC proves to the 
state commission that virtual collocation is not technically feasible. 
If virtual collocation is not technically feasible, the incumbent LEC 
shall provide other methods of interconnection and access to unbundled 
network elements to the extent technically feasible.
    (f) An incumbent LEC shall submit to the state commission detailed 
floor plans or diagrams of any premises where the incumbent LEC claims 
that physical collocation is not practical because of space limitations.
    (g) An incumbent LEC that is classified as a Class A company under 
Sec. 32.11 of this chapter and that is not a National Exchange Carrier 
Association

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interstate tariff participant as provided in part 69, subpart G, shall 
continue to provide expanded interconnection service pursuant to 
interstate tariff in accordance with Secs. 64.1401, 64.1402, 69.121 of 
this chapter, and the Commission's other requirements.