30 Tex. Admin. Code § 37.161
An owner or operator who uses a surety bond or an irrevocable standby letter of credit to satisfy the requirements of this chapter must establish a standby trust fund. Under the terms of the bond or letter of credit, all payments made under the bond or all amounts paid pursuant to a draft by the executive director shall be deposited by the surety or issuing institution directly into the standby trust fund or in accordance with instructions from the executive director. This standby trust fund must meet the requirements of the trust fund specified in §37.201 of this title (relating to Trust Fund), except that:
(2) unless the standby trust fund is funded pursuant to the requirements of this chapter, the following are not required by this section:
Source Note:The provisions of this §37.161 adopted to be effective December 30, 1996, 21 TexReg 12297; amended to be effective March 21, 2000, 25 TexReg 2347.