1. Payment of grants under sections 360.111 to 360.118 shall be made from funds appropriated for such purpose under section 164.303. Payment shall be authorized by the commissioner of education upon receipt of the closing legal opinion for the bonds by the commissioner of education and a certification by the school district that the funds will be used for costs relating to projects approved under and satisfying the qualifications and requirements of subsection 1 of section 360.113.
2. Any refunding or refinancing of existing bonds of a school district under sections 360.111 to 360.118 shall have a net present value savings of at least one and one-half percent of the par amount of the refunded bonds.