The board may invest and reinvest authority funds in direct or indirect obligations of the United States, an agency of the United States, the State of Texas, or a county, municipality, school district, or other political subdivision of the state. Funds of the authority may be placed in certificates of deposit of state or national banks or savings and loan associations in the state if the certificates of deposit are secured in the manner provided for the security of county funds.
Tex. Loc. Gov't. Code § 281.060