Pennsylvania State Employees Retirement System, Harrisburg, issued an RFP for a firm to provide actuarial and consulting services to the $27 billion system, according to spokesman Robert Gentzel. The contract of current actuary Hay Group expires June 30, 2006. The firm will be invited to rebid. The RFP is available at www.dgsweb.state.pa.us/comod/bids/rfpoms051.pdf. Proposals are due Oct. 24, and finalists will be interviewed Jan. 25.