Tex. Finance Code § 125.508: KEY IMPRINTING.

(a) A credit union that rents or permits access to a safe deposit box shall:

(1) imprint all keys issued to the box after September 1, 1992, with its routing number; or

(2) issue keys imprinted with the routing number.

(b) If available space on a key is insufficient for imprinting the routing number, the credit union shall attach to the key a tag imprinted with the routing number.

(c) If a credit union believes that the routing number imprinted on a key, or a tag attached to a key, used to access a safe deposit box has been altered or defaced in a manner that the correct routing number is illegible, the credit union shall notify the Department of Public Safety, on a form designated by the commissioner, not later than the 10th day after the date the key is used to access the box.

(d) This section does not require a credit union to inspect the routing number imprinted on a key or an attached tag to determine whether the number has been altered or defaced.

Acts 1997, 75th Leg., ch. 1008, Sec. 1, eff. Sept. 1, 1997.