(1) After holding the hearing referred to in Section 17B-1-621, the board of trustees may, by resolution, amend the budgets of the funds proposed to be increased, so as to make all or part of the increases, both estimated revenues and appropriations, which were the proper subject of consideration at the hearing.
(2) The board of trustees may not adopt an amendment to the current year budgets of any of the funds established in Section 17B-1-605 after the last day of the fiscal year.