Each year, an annual, themed Grand Assembly Session is held, where all Assemblies in the state or region come together for formal meetings, fun and special projects. All members of Rainbow attend these sessions. There are also open sessions that anyone may attend.
Competitions are often held at Oregon Grand Assembly and provide a lot of enthusiasm and excitement. These include such things as ritual, entertainment (talent), scrapbook parade and summer faire. Many honors and awards are also presented throughout Grand Assembly sessions for outstanding service, such as college scholarships, Grand Cross and Service to Rainbow.
The highlight of any Grand Assembly is the announcement of the new Grand Officers for that jurisdiction – who will serve for the following year.