Texas Utilities Code - UTIL § 55.106. Per-Line Blocking

(a) Except as provided by Section 55.1065, the commission shall require that a provider of caller identification service offer free per-line blocking to a particular customer if the commission receives from the customer written certification that the customer has a compelling need for per-line blocking.

(b) A provider who is ordered to offer per-line blocking under this section shall notify the customer by mail of the date the blocking will begin.

(c) If a customer removes and later reinstates the per-line block, the provider may assess a service order charge in an amount approved by the commission for the provider's administrative expenses relating to the reinstatement.

(d) The commission may impose a fee or assessment on a provider in an amount sufficient to cover the additional expenses the commission incurs in implementing the customer certification provisions of this section.

(e) Information received under this section by the commission or by a provider is confidential and may be used only to administer this section.