Sec. 507.053. MEETINGS. The board of directors of a spaceport development corporation shall meet: (1) at least once every three months; and (2) at the call of the presiding officer or a majority of the directors. Added by Acts 2007, 80th Leg., R.S., Ch. 885 (H.B. 2278), Sec. 3.01, eff. April 1, 2009. SUBCHAPTER C. POWERS AND DUTIES