[Code of Federal Regulations]
[Title 47, Volume 3]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR51.323]

[Page 56-61]
 
                       TITLE 47--TELECOMMUNICATION
 
        CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED)
 
PART 51_INTERCONNECTION--Table of Contents
 
  Subpart D_Additional Obligations of Incumbent Local Exchange Carriers
 
Sec.  51.323  Standards for physical collocation and virtual collocation.

    (a) An incumbent LEC shall provide physical collocation and virtual 
collocation to requesting telecommunications carriers.
    (b) An incumbent LEC shall permit the collocation and use of any 
equipment necessary for interconnection or access to unbundled network 
elements.

[[Page 57]]

    (1) Equipment is necessary for interconnection if an inability to 
deploy that equipment would, as a practical, economic, or operational 
matter, preclude the requesting carrier from obtaining interconnection 
with the incumbent LEC at a level equal in quality to that which the 
incumbent obtains within its own network or the incumbent provides to 
any affiliate, subsidiary, or other party.
    (2) Equipment is necessary for access to an unbundled network 
element if an inability to deploy that equipment would, as a practical, 
economic, or operational matter, preclude the requesting carrier from 
obtaining nondiscriminatory access to that unbundled network element, 
including any of its features, functions, or capabilities.
    (3) Multi-functional equipment shall be deemed necessary for 
interconnection or access to an unbundled network element if and only if 
the primary purpose and function of the equipment, as the requesting 
carrier seeks to deploy it, meets either or both of the standards set 
forth in paragraphs (b)(1) and (b)(2) of this section. For a piece of 
equipment to be utilized primarily to obtain equal in quality 
interconnection or nondiscriminatory access to one or more unbundled 
network elements, there also must be a logical nexus between the 
additional functions the equipment would perform and the 
telecommunication services the requesting carrier seeks to provide to 
its customers by means of the interconnection or unbundled network 
element. The collocation of those functions of the equipment that, as 
stand-alone functions, do not meet either of the standards set forth in 
paragraphs (b)(1) and (b)(2) of this section must not cause the 
equipment to significantly increase the burden on the incumbent's 
property.
    (c) Whenever an incumbent LEC objects to collocation of equipment by 
a requesting telecommunications carrier for purposes within the scope of 
section 251(c)(6) of the Act, the incumbent LEC shall prove to the state 
commission that the equipment is not necessary for interconnection or 
access to unbundled network elements under the standards set forth in 
paragraph (b) of this section. An incumbent LEC may not object to the 
collocation of equipment on the grounds that the equipment does not 
comply with safety or engineering standards that are more stringent than 
the safety or engineering standards that the incumbent LEC applies to 
its own equipment. An incumbent LEC may not object to the collocation of 
equipment on the ground that the equipment fails to comply with Network 
Equipment and Building Specifications performance standards or any other 
performance standards. An incumbent LEC that denies collocation of a 
competitor's equipment, citing safety standards, must provide to the 
competitive LEC within five business days of the denial a list of all 
equipment that the incumbent LEC locates at the premises in question, 
together with an affidavit attesting that all of that equipment meets or 
exceeds the safety standard that the incumbent LEC contends the 
competitor's equipment fails to meet. This affidavit must set forth in 
detail: the exact safety requirement that the requesting carrier's 
equipment does not satisfy; the incumbent LEC's basis for concluding 
that the requesting carrier's equipment does not meet this safety 
requirement; and the incumbent LEC's basis for concluding why 
collocation of equipment not meeting this safety requirement would 
compromise network safety.
    (d) When an incumbent LEC provides physical collocation, virtual 
collocation, or both, the incumbent LEC shall:
    (1) Provide an interconnection point or points, physically 
accessible by both the incumbent LEC and the collocating 
telecommunications carrier, at which the fiber optic cable carrying an 
interconnector's circuits can enter the incumbent LEC's premises, 
provided that the incumbent LEC shall designate interconnection points 
as close as reasonably possible to its premises;
    (2) Provide at least two such interconnection points at each 
incumbent LEC premises at which there are at least two entry points for 
the incumbent LEC's cable facilities, and at which space is available 
for new facilities in at least two of those entry points;
    (3) Permit interconnection of copper or coaxial cable if such 
interconnection

[[Page 58]]

is first approved by the state commission; and
    (4) Permit physical collocation of microwave transmission facilities 
except where such collocation is not practical for technical reasons or 
because of space limitations, in which case virtual collocation of such 
facilities is required where technically feasible.
    (e) When providing virtual collocation, an incumbent LEC shall, at a 
minimum, install, maintain, and repair collocated equipment meeting the 
standards set forth in paragraph (b) of this section within the same 
time periods and with failure rates that are no greater than those that 
apply to the performance of similar functions for comparable equipment 
of the incumbent LEC itself.
    (f) An incumbent LEC shall provide space for the collocation of 
equipment meeting the standards set forth in paragraph (b) of this 
section in accordance with the following requirements:
    (1) An incumbent LEC shall make space available within or on its 
premises to requesting telecommunications carriers on a first-come, 
first-served basis, provided, however, that the incumbent LEC shall not 
be required to lease or construct additional space to provide for 
physical collocation when existing space has been exhausted;
    (2) To the extent possible, an incumbent LEC shall make contiguous 
space available to requesting telecommunications carriers that seek to 
expand their existing collocation space;
    (3) When planning renovations of existing facilities or constructing 
or leasing new facilities, an incumbent LEC shall take into account 
projected demand for collocation of equipment;
    (4) An incumbent LEC may retain a limited amount of floor space for 
its own specific future uses, provided, however, that neither the 
incumbent LEC nor any of its affiliates may reserve space for future use 
on terms more favorable than those that apply to other 
telecommunications carriers seeking to reserve collocation space for 
their own future use;
    (5) An incumbent LEC shall relinquish any space held for future use 
before denying a request for virtual collocation on the grounds of space 
limitations, unless the incumbent LEC proves to the state commission 
that virtual collocation at that point is not technically feasible; and
    (6) An incumbent LEC may impose reasonable restrictions on the 
warehousing of unused space by collocating telecommunications carriers, 
provided, however, that the incumbent LEC shall not set maximum space 
limitations applicable to such carriers unless the incumbent LEC proves 
to the state commission that space constraints make such restrictions 
necessary.
    (7) An incumbent LEC must assign collocation space to requesting 
carriers in a just, reasonable, and nondiscriminatory manner. An 
incumbent LEC must allow each carrier requesting physical collocation to 
submit space preferences prior to assigning physical collocation space 
to that carrier. At a minimum, an incumbent LEC's space assignment 
policies and practices must meet the following principles:
    (A) An incumbent LEC's space assignment policies and practices must 
not materially increase a requesting carrier's collocation costs.
    (B) An incumbent LEC's space assignment policies and practices must 
not materially delay a requesting carrier occupation and use of the 
incumbent LEC's premises.
    (C) An incumbent LEC must not assign physical collocation space that 
will impair the quality of service or impose other limitations on the 
service a requesting carrier wishes to offer.
    (D) An incumbent LEC's space assignment policies and practices must 
not reduce unreasonably the total space available for physical 
collocation or preclude unreasonably physical collocation within the 
incumbent's premises.
    (g) An incumbent LEC shall permit collocating telecommunications 
carriers to collocate equipment and connect such equipment to unbundled 
network transmission elements obtained from the incumbent LEC, and shall 
not require such telecommunications carriers to bring their own 
transmission facilities to the incumbent LEC's premises in which they 
seek to collocate equipment.

[[Page 59]]

    (h) As described in paragraphs (1) and (2) of this section, an 
incumbent LEC shall permit a collocating telecommunications carrier to 
interconnect its network with that of another collocating 
telecommunications carrier at the incumbent LEC's premises and to 
connect its collocated equipment to the collocated equipment of another 
telecommunications carrier within the same premises, provided that the 
collocated equipment is also used for interconnection with the incumbent 
LEC or for access to the incumbent LEC's unbundled network elements.
    (1) An incumbent LEC shall provide, at the request of a collocating 
telecommunications carrier, a connection between the equipment in the 
collocated spaces of two or more telecommunications carriers, except to 
the extent the incumbent LEC permits the collocating parties to provide 
the requested connection for themselves or a connection is not required 
under paragraph (h)(2) of this section. Where technically feasible, the 
incumbent LEC shall provide the connection using copper, dark fiber, lit 
fiber, or other transmission medium, as requested by the collocating 
telecommunications carrier.
    (2) An incumbent LEC is not required to provide a connection between 
the equipment in the collocated spaces of two or more telecommunications 
carriers if the connection is requested pursuant to section 201 of the 
Act, unless the requesting carrier submits to the incumbent LEC a 
certification that more than 10 percent of the amount of traffic to be 
transmitted through the connection will be interstate. The incumbent LEC 
cannot refuse to accept the certification, but instead must provision 
the service promptly. Any incumbent LEC may file a section 208 complaint 
with the Commission challenging the certification if it believes that 
the certification is deficient. No such certification is required for a 
request for such connection under section 251 of the Act.
    (i) As provided herein, an incumbent LEC may require reasonable 
security arrangements to protect its equipment and ensure network 
reliability. An incumbent LEC may only impose security arrangements that 
are as stringent as the security arrangements that the incumbent LEC 
maintains at its own premises for its own employees or authorized 
contractors. An incumbent LEC must allow collocating parties to access 
their collocated equipment 24 hours a day, seven days a week, without 
requiring either a security escort of any kind or delaying a 
competitor's employees' entry into the incumbent LEC's premises. An 
incumbent LEC may require a collocating carrier to pay only for the 
least expensive, effective security option that is viable for the 
physical collocation space assigned. Reasonable security measures that 
the incumbent LEC may adopt include:
    (1) Installing security cameras or other monitoring systems; or
    (2) Requiring competitive LEC personnel to use badges with 
computerized tracking systems; or
    (3) Requiring competitive LEC employees to undergo the same level of 
security training, or its equivalent, that the incumbent's own 
employees, or third party contractors providing similar functions, must 
undergo; provided, however, that the incumbent LEC may not require 
competitive LEC employees to receive such training from the incumbent 
LEC itself, but must provide information to the competitive LEC on the 
specific type of training required so the competitive LEC's employees 
can conduct their own training.
    (4) Restricting physical collocation to space separated from space 
housing the incumbent LEC's equipment, provided that each of the 
following conditions is met:
    (i) Either legitimate security concerns, or operational constraints 
unrelated to the incumbent's or any of its affiliates' or subsidiaries 
competitive concerns, warrant such separation;
    (ii) Any physical collocation space assigned to an affiliate or 
subsidiary of the incumbent LEC is separated from space housing the 
incumbent LEC's equipment;
    (iii) The separated space will be available in the same time frame 
as, or a shorter time frame than, non-separated space;

[[Page 60]]

    (iv) The cost of the separated space to the requesting carrier will 
not be materially higher than the cost of non-separated space; and
    (v) The separated space is comparable, from a technical and 
engineering standpoint, to non-separated space.
    (5) Requiring the employees and contractors of collocating carriers 
to use a central or separate entrance to the incumbent's building, 
provided, however, that where an incumbent LEC requires that the 
employees or contractors of collocating carriers access collocated 
equipment only through a separate entrance, employees and contractors of 
the incumbent LEC's affiliates and subsidiaries must be subject to the 
same restriction.
    (6) Constructing or requiring the construction of a separate 
entrance to access physical collocation space, provided that each of the 
following conditions is met:
    (i) Construction of a separate entrance is technically feasible;
    (ii) Either legitimate security concerns, or operational constraints 
unrelated to the incumbent's or any of its affiliates' or subsidiaries 
competitive concerns, warrant such separation;
    (iii) Construction of a separate entrance will not artificially 
delay collocation provisioning; and
    (iv) Construction of a separate entrance will not materially 
increase the requesting carrier's costs.
    (j) An incumbent LEC shall permit a collocating telecommunications 
carrier to subcontract the construction of physical collocation 
arrangements with contractors approved by the incumbent LEC, provided, 
however, that the incumbent LEC shall not unreasonably withhold approval 
of contractors. Approval by an incumbent LEC shall be based on the same 
criteria it uses in approving contractors for its own purposes.
    (k) An incumbent LEC's physical collocation offering must include 
the following:
    (1) Shared collocation cages. A shared collocation cage is a caged 
collocation space shared by two or more competitive LECs pursuant to 
terms and conditions agreed to by the competitive LECs. In making shared 
cage arrangements available, an incumbent LEC may not increase the cost 
of site preparation or nonrecurring charges above the cost for 
provisioning such a cage of similar dimensions and material to a single 
collocating party. In addition, the incumbent must prorate the charge 
for site conditioning and preparation undertaken by the incumbent to 
construct the shared collocation cage or condition the space for 
collocation use, regardless of how many carriers actually collocate in 
that cage, by determining the total charge for site preparation and 
allocating that charge to a collocating carrier based on the percentage 
of the total space utilized by that carrier. An incumbent LEC must make 
shared collocation space available in single-bay increments or their 
equivalent, i.e., a competing carrier can purchase space in increments 
small enough to collocate a single rack, or bay, of equipment.
    (2) Cageless collocation. Incumbent LECs must allow competitors to 
collocate without requiring the construction of a cage or similar 
structure. Incumbent LECs must permit collocating carriers to have 
direct access to their equipment. An incumbent LEC may not require 
competitors to use an intermediate interconnection arrangement in lieu 
of direct connection to the incumbent's network if technically feasible. 
An incumbent LEC must make cageless collocation space available in 
single-bay increments, meaning that a competing carrier can purchase 
space in increments small enough to collocate a single rack, or bay, of 
equipment.
    (3) Adjacent space collocation. An incumbent LEC must make 
available, where physical collocation space is legitimately exhausted in 
a particular incumbent LEC structure, collocation in adjacent controlled 
environmental vaults, controlled environmental huts, or similar 
structures located at the incumbent LEC premises to the extent 
technically feasible. The incumbent LEC must permit a requesting 
telecommunications carrier to construct or otherwise procure such an 
adjacent structure, subject only to reasonable safety and maintenance 
requirements. The incumbent must provide power and

[[Page 61]]

physical collocation services and facilities, subject to the same 
nondiscrimination requirements as applicable to any other physical 
collocation arrangement. The incumbent LEC must permit the requesting 
carrier to place its own equipment, including, but not limited to, 
copper cables, coaxial cables, fiber cables, and telecommunications 
equipment, in adjacent facilities constructed by the incumbent LEC, the 
requesting carrier, or a third-party. If physical collocation space 
becomes available in a previously exhausted incumbent LEC structure, the 
incumbent LEC must not require a carrier to move, or prohibit a 
competitive LEC from moving, a collocation arrangement into that 
structure. Instead, the incumbent LEC must continue to allow the carrier 
to collocate in any adjacent controlled environmental vault, controlled 
environmental vault, or similar structure that the carrier has 
constructed or otherwise procured.
    (l) An incumbent LEC must offer to provide and provide all forms of 
physical collocation (i.e., caged, cageless, shared, and adjacent) 
within the following deadlines, except to the extent a state sets its 
own deadlines or the incumbent LEC has demonstrated to the state 
commission that physical collocation is not practical for technical 
reasons or because of space limitations.
    (1) Within ten days after receiving an application for physical 
collocation, an incumbent LEC must inform the requesting carrier whether 
the application meets each of the incumbent LEC's established 
collocation standards. A requesting carrier that resubmits a revised 
application curing any deficiencies in an application for physical 
collocation within ten days after being informed of them retains its 
position within any collocation queue that the incumbent LEC maintains 
pursuant to paragraph (f)(1) of this section.
    (2) Except as stated in paragraphs (l)(3) and (l)(4) of this 
section, an incumbent LEC must complete provisioning of a requested 
physical collocation arrangement within 90 days after receiving an 
application that meets the incumbent LEC's established collocation 
application standards.
    (3) An incumbent LEC need not meet the deadline set forth in 
paragraph (l)(2) of this section if, after receipt of any price 
quotation provided by the incumbent LEC, the telecommunications carrier 
requesting collocation does not notify the incumbent LEC that physical 
collocation should proceed.
    (4) If, within seven days of the requesting carrier's receipt of any 
price quotation provided by the incumbent LEC, the telecommunications 
carrier requesting collocation does not notify the incumbent LEC that 
physical collocation should proceed, then the incumbent LEC need not 
complete provisioning of a requested physical collocation arrangement 
until 90 days after receiving such notification from the requesting 
telecommunications carrier.

[61 FR 45619, Aug. 28, 1996, as amended at 64 FR 23242, Apr. 30, 1999; 
65 FR 54439, Sept. 8, 2000; 66 FR 43521, Aug. 20, 2001]