TARIFFS REQUIRED.
Tex. UTIL Code § 35.007.
in effect(a) Except as provided by Subsection (b), an electric utility that owns or operates a transmission facility shall file a tariff in compliance with commission rules adopted under Section 35.006 .
(b) An electric utility is not required to file a tariff under this section if the utility's terms for access and pricing for wholesale transmission service are included in another electric utility's tariff.
(c) An electric utility shall file a tariff required by this section with the appropriate state or federal regulatory agency having jurisdiction over the utility's transmission service.