Organizations or institutions that are integral parts of a national, regional, or local governmental system, typically established by law or constitution, and responsible for enacting and enforcing laws, managing public resources, and providing public services. They can be at the federal level where they have jurisdiction over the entirety of a nation, or they can be more localized, operating within a specific geographical area. These bodies often include the legislative, executive, and judicial branches, as well as various departments and agencies.