4.There is created in the Department of Transportation a special non-lapsing fund to be known as the "Rewards for Justice License Plate Fund." There shall be deposited in the fund the amounts collected from license plate fees pursuant to section 3 of this act, less the amounts necessary to reimburse the division for administrative costs pursuant to section 5 of this act. Monies deposited in the fund shall be distributed, at the discretion of the Commissioner of Transportation, either into the Rewards for Justice Fund, established by a private nonprofit organization, all of which shall be contributed to the United States State Department's Rewards for Justice Program or directly to the Rewards for Justice Program. Prior to distribution, monies deposited in the fund shall be held in interest-bearing accounts in public depositories as defined pursuant to section 1 of P.L.1970, c.236 (C.17:9-41), and may be invested or reinvested in such securities as are approved by the State Treasurer. Interest or other income earned on monies deposited in the fund, and any monies which may be appropriated or otherwise become available for the purposes of the fund, shall be credited to and deposited in the fund for use as set forth in this act.