Connecticut General Statutes Title 47. Land and Land Titles § 47-251. Quorum

(a) Unless the bylaws otherwise provide, a quorum is present throughout any meeting of the unit owners if persons entitled to cast twenty per cent of the votes in the association are present in person or by proxy at the beginning of the meeting.

(b) Unless the bylaws specify a larger number, a quorum of the executive board is present for purposes of determining the validity of any action taken at a meeting of the executive board only if individuals entitled to cast a majority of the votes on that board are present at the time a vote regarding that action is taken. If a quorum is present when a vote is taken, the affirmative vote of a majority of the board members present is the act of the executive board unless a greater vote is required by the declaration or bylaws.