(a) As used in this article:
(i) "Challenge account" means the reclamation and restoration challenge account established under W.S. 21-16-1602;
(ii) "Qualifying contribution" means a transfer of money or other property of a value of not less than one hundred thousand dollars ($100,000.00) to the University of Wyoming foundation to be expended by the university exclusively for the Wyoming reclamation and restoration center. The commitment for a qualifying contribution or the contribution itself shall be made in the period beginning July 1, 2011 and ending June 30, 2018. The contribution shall be actually received by the University of Wyoming foundation on or before June 30, 2020.