Arizona State Retirement System, Phoenix, issued an RFP for a global custodian, according to the $28.3 billion systems website. Services could include securities lending. The RFP is available at http://www.azasrs.gov/web/OpenSolicitations.do. Proposals are due by 3 p.m. MST June 12. CIO Gary Dokes and Director Paul Matson could not be reached by press time for further information. BNY Mellon was the systems custodian as of December 2006, according to the 2008 Money Market Directory.