(a) Association.--Unless the bylaws provide otherwise, a quorum is deemed present throughout any meeting of the association if persons entitled to cast 20% of the votes which may be cast for election of the executive board are present in person or by proxy at the beginning of the meeting. The bylaws may require a larger percentage or a smaller percentage not less than 10%.

(b) Executive board.--Unless the bylaws specify a larger percentage, a quorum is deemed present throughout any meeting of the executive board if persons entitled to cast 50% of the votes on that board are present at the beginning of the meeting.