Republic Act No. 8371, also known as the Indigenous Peoples Rights Act of 1997, recognizes and promotes certain rights of Indigenous Cultural Communities/Indigenous Peoples within the framework of the Constitution. The Act defines ancestral domain as lands, inland waters, coastal areas, and natural resources traditionally belonging to Indigenous Cultural Communities/Indigenous Peoples, occupied or possessed by them communally or individually since time immemorial and passed down through generations, including agricultural lands, forests, and bodies of water important for subsistence.