Ind. Code § 4-30-15-2
Money in the administrative trust fund that the commission anticipates will be available for the payment of prizes on a deferred basis may be invested by the treasurer of state in annuities sold by an insurance company licensed to do business in Indiana and with an A.M. Best rating of A+, or a comparable rating by a comparable rating agency, or in direct United States treasury obligations. These instruments may have varying maturities with respect to payment of prizes and may be in book-entry form. If an annuity is purchased to cover the payment of a prize, the commission shall administer the annuity, may assign the annuity to the prize winner, and shall provide the treasurer of state with documentation of the commission's purchase and assignment. If an annuity is assigned to a prize winner, the state and the commission, including the commission's officers and employees, are relieved of any liability to the prize winner.
IC 4-30-15-2