(a) An owner or operator may satisfy the requirements of financial assurance for liability as specified in Subchapter E of this chapter (relating to Financial Assurance Requirements for Liability Coverage) by obtaining an irrevocable standby letter of credit which conforms to the requirements of this section, in addition to the requirements specified in Subchapter A of this chapter (relating to General Financial Assurance Requirements), and submitting an originally signed irrevocable standby letter of credit to the executive director.     
      (b) The financial institution issuing the irrevocable standby letter of credit shall be an entity that has the authority to issue irrevocable standby letters of credit and whose letter of credit operations are regulated and examined by a federal or state agency.     
      (c) The wording of the irrevocable standby letter of credit must be identical to the wording specified in §37.621 of this title (relating to Irrevocable Standby Letter of Credit for Liability).     
      (d) An owner or operator who uses an irrevocable standby letter of credit to satisfy the requirements of this section may also establish a standby trust fund. Under the terms of such a letter of credit, all amounts paid pursuant to a draft by the trustee of the standby trust will be deposited by the issuing institution into the standby trust in accordance with instructions from the trustee. The trustee of the standby trust fund must be an entity which has the authority to act as a trustee and whose trust operations are regulated and examined by a federal or state agency.     
      (e) The wording of the standby trust fund must be identical to the wording specified in §37.671 of this title (relating to Standby Trust Agreement).     
     Source Note:        The provisions of this §37.521 adopted to be effective December 30, 1996, 21 TexReg 12297; amended to be effective March 21, 2000, 25 TexReg 2347