Chapter activities/events are conducted primarily for the benefit of H.O.G. chapter members.  There are three categories of activities:

(C) Closed Event - An activity for chapter members, and one guest per member. Expect more members than guests.

(M) Member Event - Open only to Nat'l HOG members.  Members may not bring guests.

(O) Open Event -  An event open to the general public, or an event where the number of guests is expected to be more than chapter members.

Chapter Handbook pg 109-110