Alaska Permanent Fund Corp., Juneau, is searching for an investment consultant, said CIO Richard Shafer. The contract of Callan Associates, current consultant to the $30 billion fund, expires in June; the firm can rebid. The RFP is available at www.apfc.org. Proposals are due April 15. The board is scheduled to meet May 25 to review the finalists. The new contract will take effect July 1.