Texas Employees Retirement System, Austin, issued an RFP for a global custodian, confirmed Mary Jane Wardlow, spokeswoman for the $21 billion system. The contract of incumbent JPMorgan Chase is expiring, and the firm can rebid. The RFP is available at www.ers.state.tx.us/GlobalCustodyServiceRFP.htm. Proposals are due Oct. 4, and a selection is expected in December. Callan Associates is assisting.