Tex. Gov't Code § 4005.056
The exemption provided by Section 4005.051 applies to notes, bonds, or other evidence of indebtedness or certificates of ownership that:
(2) by the terms of the instrument creating the lien, continue to be secured by the deposit with a trustee of recognized responsibility approved by the commissioner of any of the securities specified in:
Added by Acts 2019, 86th Leg., R.S., Ch. 491 (H.B. 4171), Sec. 1.01, eff. January 1, 2022.