Governance meetings
Governance meetings, like tactical meetings, take place at team level. The purpose of a governance meeting is to change the very structure of the team. For example, the team may use a governance meeting to:
Create, remove or change the role distribution in the team
Create, remove or change agreements and frameworks in the team
Choose new people to hold the permanent positions of meeting facilitator, secretary, etc.
You can read more about the actual event process of a governance meeting here.