Tex. Finance Code § 204.113

(a) In accordance with rules adopted under this subtitle, a foreign bank licensed to establish and maintain a Texas state branch or agency may be required to keep on deposit, with unaffiliated banks in this state that the foreign bank designates and the commissioner approves, money and securities pledged to the commissioner in an aggregate amount to be determined by the commissioner, valued at the lower of principal amount or market value, consisting of:

(1) dollar deposits;

(2) bonds, notes, debentures, or other legally created, general obligations of a state, an agency or political subdivision of a state, the United States, or an instrumentality of the United States;

(3) securities that this state, an agency or political subdivision of this state, the United States, or an instrumentality of the United States has unconditionally agreed to purchase, insure, or guarantee;

(4) securities issued or guaranteed by the Federal Home Loan Mortgage Corporation, the Federal National Mortgage Association, the Government National Mortgage Association, the Federal Agricultural Mortgage Corporation, or the Federal Farm Credit Banks Funding Corporation;

(5) obligations of or issued or guaranteed by the International Bank for Reconstruction and Development, the African Development Bank, the Asian Development Bank, the InterAmerican Development Bank, or the North American Development Bank; or

(6) other assets as may be permitted by rule.

(b) The assets deposited and the amount of the assets to be maintained under Subsection (a) are subject to the conditions and limitations the commissioner considers necessary or desirable for the maintenance of a sound financial condition, the protection of depositors, creditors, and the public interest in this state, and the support of public confidence in the business of the Texas state branch or agency. The commissioner may give credit to reserves required to be maintained with a federal reserve bank in or outside this state pursuant to federal law, in accordance with rules adopted under this subtitle.

(c) While a foreign bank continues business in the ordinary course, the foreign bank may collect interest on the money and securities deposited under this section and from time to time exchange, examine, and verify the securities.