The 2022 OAO Annual Session will be held in conjunction with the GLAO Annual Session.  The Hilton Cleveland Downtown is in the heart of Downtown Cleveland, with the Rocket Mortgage Field House, Playhouse Square, East 4th Street and Progressive Field within walking distance.  The Great Lakes Science Center, Rock and Roll Hall of Fame, shopping and dining are also within the area and a top-floor bar with views of Lake Erie.





2022 OAO Business Meeting      


  • Details coming soon                                              

Hilton Cleveland Downtown

September 16-17, 2022 

In conjunction with the GLAO Annual Session.

Meetings & Education

Please click the blue box to the left for further information and registration details.