C.R.S. § 32-11-211

(1) All meetings of the board shall be held within the district and shall be open to the public. (2) No business of the board shall be transacted except at a regular or special meeting at which a quorum consisting of at least a majority of the total membership of the board is present. (3) Any action of the board shall require the affirmative vote of a majority of the directors present and voting except as otherwise provided in this article. (4) A smaller number of directors than a quorum may adjourn from time to time and may compel the attendance of absent members in such manner and under such penalties as the board may provide.