Under which condition(s) must you notify the Oregon State Marine Board within 30 days?

You must notify the Oregon State Marine Board within 30 days if there is a change in ownership of your boat, if you change your address, or if your boat is destroyed or lost. Additionally, if there are any changes to the vessel's status that affect its registration, such as a change in its use or type, you are also required to inform the Board within this timeframe.