The Washington State Investment Board, Olympia, will search for a private equity consultant, said spokeswoman Liz Mendizabal in an e-mail. Current consultant Pacific Corporate Group, whose contract expires Dec. 31, is eligible to re-bid. An RFP will be posted on the WSIB website, www.sib.wa.gov, on Feb.15. Proposals are provisionally due March 25, although that deadline could change when the RFP is published. WSIB has $61.2 billion in total assets as of Dec. 31.