20-15-309. Biennial budgeting. The board of trustees of a community college district shall submit enrollment projections and other data necessary for calculating the state appropriation under 20-15-310 to the board of regents by August 1 immediately preceding each regular legislative session. By the following September 1, the board of regents shall submit its proposal for funding the community colleges to the budget director, the legislative fiscal analyst, and to the legislature in accordance with 5-11-210.