Texas Local Government Code - LOC GOV'T § 394.057. Bond as Authorized Investment or as Security for Deposit

(a) Bonds issued under this chapter are legal and authorized investments for any bank, savings bank, trust company, savings and loan association, insurance company, fiduciary, trustee, guardian, or sinking fund of a municipality, county, school district, or other political corporation or subdivision of the state.

(b) The bonds are eligible to secure the deposit of any public funds of this state or of a municipality, county, school district, or other political corporation or subdivision of the state, and are lawful and sufficient securities for the deposits at face value if accompanied by all unmatured coupons, if any, appurtenant to the bonds.