30 Tex. Admin. Code § 37.885
An owner or operator is no longer required to maintain financial assurance under this subchapter for an underground storage tank after the tank has been removed from service or, if corrective action is required, after corrective action has been completed and the tank has been properly removed from service in accordance with the requirements of §334.55 of this title (relating to Permanent Removal from Service).
Source Note:The provisions of this §37.885 adopted to be effective November 23, 2000, 25 TexReg 11399.