Which body imposes the requirement that all City offices remain nonpartisan?

The requirement that all City offices remain nonpartisan is typically established through the City Charter. The City Charter serves as the foundational legal document that outlines the organization, powers, and responsibilities of the city government, including stipulations about the operation of various offices and offices holders. By embedding nonpartisanship in the City Charter, it ensures that all city officials conduct their duties without bias toward any political party, promoting fairness and neutrality in governance.

The City Charter is often ratified by voters or enacted by the city council, and it carries legal weight, meaning that its provisions are enforceable and must be adhered to by all city offices. Other potential sources of nonpartisan requirements, such as a mayor's order or custom and tradition, do not possess the same formal authority and might be more flexible or subject to change. The state legislature can influence cities via broader laws, but local governance nuances and specific operational guidelines regarding nonpartisanship are firmly grounded in the City Charter.