Tex. Utilities Code § 52.007

(a) This section applies only to a telecommunications provider that is not subject to rate of return regulation under Chapter 53.

(b) A telecommunications provider:

(1) may, but is not required to, maintain on file with the commission tariffs, price lists, or customer service agreements governing the terms of providing service;

(2) may make changes in its tariffs, price lists, and customer service agreements in relation to services that are not subject to regulation without commission approval; and

(3) may cross-reference its federal tariff in its state tariff if the provider's intrastate switched access rates are the same as the provider's interstate switched access rates.

(c) A telecommunications provider may withdraw a tariff, price list, or customer service agreement not required to be filed or maintained with the commission under this section if the telecommunications provider:

(1) files written notice of the withdrawal with the commission; and

(2) notifies its customers of the withdrawal and posts the current tariffs, price lists, or generic customer service agreements on the telecommunications provider's Internet website.

(d) The commission may not require a telecommunications provider to withdraw a tariff, price list, or customer service agreement.

(d-1) The commission may not require a nondominant carrier to obtain advance approval for a filing with the commission or a posting on the nondominant carrier's Internet website that adds, modifies, withdraws, or grandfathers a retail service or the service's rates, terms, or conditions.

(d-2) In this subsection, "deregulated company" and "transitioning company" have the meanings assigned by Section 65.002. The commission may not require a deregulated company or transitioning company to obtain advance approval for a filing with the commission or a posting on the company's Internet website that adds, modifies, withdraws, or grandfathers:

(1) a nonbasic retail service or the service's rates, terms, or conditions; or

(2) for a market that has been deregulated, a basic network service or the service's rates, terms, or conditions.

(d-3) Unless an interconnection agreement contract specifies otherwise, an incumbent local exchange carrier shall continue to provide to affected resellers of retail services the same notice of rate changes or withdrawal of detariffed services that it was required to provide prior to detariffing.

(e) This section does not affect the authority of the commission to regulate wholesale services, or administer or enforce Chapter 56 or any other applicable regulation permitted or required under this title.