40 ILCS 5/12-166.2
The Board may lend securities owned by the Fund to a borrower upon such terms and conditions as may be mutually agreed in writing. The agreement shall provide that during the period of the loan the Fund shall retain the right to receive, or collect from the borrower, all dividends, interest rights, and any distributions to which the Fund would have otherwise been entitled. The borrower shall deposit with the Fund as collateral for the loan cash, U.S. Government securities, or letters of credit equal to the market value of the securities at the time the loan is made and shall increase the amount of collateral if and when the Fund requests an additional amount because of subsequent increases in the market value of the securities.
The period for which the securities may be loaned shall not exceed one year, and the loan agreement may specify earlier termination by either party upon mutually agreed conditions.
40 ILCS 5/12-166.2