(a) An owner or operator using any one of the mechanisms authorized by §37.830 of this title (relating to Guarantee), §37.840 of this title (relating to Surety Bond), or §37.845 of this title (relating to Letter of Credit) must establish a standby trust fund when the mechanism is acquired. The trustee of the standby trust fund must be an entity that has the authority to act as a trustee and whose trust operations are regulated and examined by a federal agency or an agency of the State of Texas. (b) The standby trust agreement or trust agreement must be worded as follows, except the instructions in parentheses are to be replaced with the relevant information and the parentheses deleted. Attached Graphic(c) The standby trust agreement or trust agreement must be accompanied by a formal certification of acknowledgment similar to the following: Attached Graphic(d) The executive director will instruct the trustee to refund the balance of the standby trust fund to the provider of financial assurance if the executive director determines that no additional corrective action costs or third-party liability claims will occur as a result of a release covered by the financial assurance mechanism for which the standby trust fund was established. (e) An owner or operator may establish one trust fund as the depository mechanism for all funds assured in compliance with this rule.