 A law passed in 2001 and signed by Governor Ben Cayetano opened up the Hawaiian wine industry to more domestic trading within the mainland United States.The new law allows the state to enter into reciprocal trade agreements with other states, enabling residents of Hawaii to purchase wine directly from wineries in those states in exchange for those states allowing Hawaiian wineries to sell wine in those states without having to go through a wholesaler in the typical three-tier distribution system.Three main wineries operate in Hawaii