47 CFR 51.325 - Notice of network changes: Public notice requirement.
(1) Will affect a competing service provider's performance or ability to provide service;
(2) Will affect the incumbent LEC's interoperability with other service providers; or
(4) Will result in the retirement of copper, as defined in § 51.332.
(b) For purposes of this section, interoperability means the ability of two or more facilities, or networks, to be connected, to exchange information, and to use the information that has been exchanged.
(c) Until public notice has been given in accordance with §§ 51.325 through 51.335, an incumbent LEC may not disclose to separate affiliates, separated affiliates, or unaffiliated entities (including actual or potential competing service providers or competitors), information about planned network changes that are subject to this section.