Tex. Gov't Code § 1371.105
(a) A pledge or lien provided for in the resolution, order, ordinance, or other proceedings authorizing a public security, a credit agreement, or another agreement on a resource of the issuer, including revenue or income, on an asset of the issuer, or on a fund maintained by the issuer to secure payment of the public security or to secure a payment required by a credit agreement or other agreement:
(2) is effective from the time of payment for and delivery of the public security or execution of the credit agreement or other agreement until:
(b) This section does not exempt an issuer from a duty to:
Added by Acts 1999, 76th Leg., ch. 227, Sec. 1, eff. Sept. 1, 1999.