WAC 314-24-100
WAC 314-24-100. Domestic wineries—Responsibility for fruits used—Records
Every domestic winery shall keep proper records as required by TTB, in a form approved by the board showing the place of origin and/or purchase of all fruits and fruit products used by such winery in the manufacture of wine, which records shall be kept at the office of such winery for a minimum of three years and available at all times for inspection by the board.