For the purpose of meeting disbursements for pensions, annuities, and other payments, there may be kept available cash, not exceeding ten percent of the total amount in the several funds of the retirement system, on deposit in one or more banks or trust companies of the state of Louisiana organized under the laws of the state of Louisiana or of the United States, provided that the sum on deposit in any one bank or trust company shall not exceed ten percent of the paid up capital and surplus of such bank or trust company.
La. Consolidated Public Retirement § 11:2003