Municipal law is the national, domestic, or internal law of a sovereign state defined in opposition to international law. Municipal law includes not only law at the national level, but law at the state, provincial, territorial, regional or local levels. While, as far as the law of the state is concerned, these may be distinct categories of law, international law is largely uninterested in this distinction and treats them all as one. Similarly, international law makes no distinction between the ordinary law of the state and its constitutional law.