Tex. Water Code § 152.254
(b) The board of directors of the river authority by formal policy shall regulate the investment of money in hedging contracts. An investment may be made only for hedging purposes. The policy must provide restrictions and procedures for making an investment that a person of ordinary prudence, discretion, and intelligence, exercising the judgment and care under the circumstances then prevailing, would follow in the management of the person's own affairs, not in regard to speculation but in regard to the permanent disposition of the person's money, considering:
Added by Acts 1999, 76th Leg., ch. 227, Sec. 26, eff. Sept. 1, 1999.