In the context of a nonprofit corporation, a quorum is the number of board members that must participate in a board meeting to permit official business to be transacted at the meeting.
In Arizona, the default rule for nonprofit corporations is a majority (51%) of the board of directors; however, the board can set the meeting threshold as low as one-third of the directors then in office.
Related post: Arizona Open Meeting Law Basics
For clarity, the bylaws should define the number of board members required for meetings of the directors. If the bylaws are silent as to quorum, then the board must look to the Arizona statutes. The Arizona statutes provide that the requisite quorum is a majority, or fifty-one percent, of the directors.
Once the required number of directors are present, the meeting threshold is met and the meeting may proceed. If the quorum is not met, the board cannot conduct official business. The directors present can, however, have informal discussions and attempt to formalize decisions through a unanimous written consent circulated after the meeting or by ratifying decisions at a later meeting at which a quorum is present.
Organizations that have large boards may want to lower the number of required board members to make it easier to meet the quorum requirement. However, lowering it too much can permit a small active group to wield excessive influence over board decisions.
Lowering the quorum too much can also send the message that regular meeting attendance is not expected. Organizations sometimes implement high quorums to encourage meeting attendance.
Related post: Board Quorums
This can also backfire as absentee directors can prevent the board from being able to hold a valid meeting. A better approach is to include a reasonably attainable quorum requirement and implement other sanctions, such as removal, for excessive missed meetings.
Ellis Carter is a nonprofit lawyer with Caritas Law Group, P.C. Ellis advises nonprofit and socially responsible businesses on corporate, tax, and fundraising regulations. Ellis is licensed to practice in Washington and Arizona and advises nonprofits on federal tax and fundraising regulations nationwide. Ellis also advises donors with regard to major gifts. To schedule a consultation with Ellis, call 602-456-0071 or email us through our contact form.
 Black’s Law Dictionary (9th ed. 2009), quorum.
 A.R.S. 10-3824(B); Arizona Open Meeting Law sets the minimum quorum for charter schools at a majority (51%).