A joint board is a governance structure where two or more municipalities share oversight of a common service or facility. Rather than each municipality operating independently, a joint board manages shared services like water treatment, waste management, regional airports, or recreation facilities. Board members typically include representatives from each participating municipality, ensuring all communities have voice in decisions. Provincial legislation authorizes joint boards and defines their powers. Joint boards allow smaller municipalities to access services they could not afford independently while sharing costs fairly. Agreements establish funding formulas, voting procedures, and dispute resolution processes.