; (2) with respect to any parcel of land identified for exchange under section 602 or sale under section 603 that is not exchanged or sold, not later than 2 years after the date the parcel of land was offered for exchange or sale under this title; or (3) on a different date mutually agreed upon by the Secretary and Churchill County. 606. Disposition of proceeds Of the proceeds from the sale of land under section 603— (1) 5 percent shall be dispersed to the State of Nevada for use in the general education program in the State; and (2) the remainder shall be deposited in a special account in the Treasury of the United States, to be known as the Churchill County Special Account , which shall be available to the Secretary of the Interior, without further appropriation, for— (A) reimbursement of costs incurred by the Secretary in preparing for the sale or exchange of land under this section; and (B) the acquisition of land (including interests in land) in Churchill County— (i) within a wilderness or national conservation area designated under this division; (ii) that protects other environmentally significant land; (iii) identified as Management Priority Areas under section 804