Who is responsible for defining and maintaining the DoD (Definition of Done)?

I have a question: Who actually defines the Definition of Done of product backlog items? Is it just the PO? Or does the entire Scrum team participate in defining the DoD? The Scrum guide states: "When a Product Backlog item or an Increment is described as “Done”, everyone must understand what “Done” means. Although this varies significantly per Scrum Team, members must have a shared understanding of what it means for work to be complete, to ensure transparency. This is the definition of “Done” for the Scrum Team and is used to assess when work is complete on the product Increment." - How should this statement be interpreted in terms of the defining the DoD?

Posted By - Thomas