Qualification for each class is determined by the amount of a person’s donation, notified bequest or pledge – this being an undertaking in writing by a person to make a donation. The classes are defined as follows:
|Donation or pledge||Notified bequest|
|Members||$5,000 to $14,999||$10,000 to $29,999|
|Fellows||$15,000 to $39,999||$30,000 to $79,000|
|Directors||$40,000 to $99,999||$80,000 to $199,999|
|Patrons||$100,000 to $499,999||$200,000 to $999,999|
|President’s Circle||$500,000 or more||$1,000,000 or more|
A member may at any time progress to a higher class of membership by making an additional donation, pledge or bequest or a combination thereof.