Declares that if the appellation of origin claimed or implied anywhere on a wine label is: (1) "Washington";

(2) The name of one or more counties in Washington; or

(3) The name of an American viticultural area wholly within Washington approved by the board, then such appellations are allowed only if all of the grapes used in the production of the wine were grown in Washington and at least ninety-five percent of the grapes used in the production of the wine were grown within the defined boundaries of the appellation of origin.

Provides that the act does not apply if the director of agriculture has made a disaster declaration for the county in which a significant portion of the grapes the manufacturer planned to use are grown.