Mo. Rev. Stat. § 70.421

The commissioners of the bi-state development agency may participate in a committee or board meeting by means of conference telephone or other communication equipment whereby all persons attending the meeting, including the general public, can hear and communicate when appropriate. Participation in a committee or board meeting in this manner shall constitute presence in person at the meeting. The committee or board meetings referenced herein shall be considered public meetings subject to chapter 610 and shall be reasonably accessible to the public.