Wash. Rev. Code § 66.28.155
A domestic brewery, microbrewery, domestic winery, distillery, distributor, certificate of approval holder, or its licensed agent may conduct educational activities or provide product information to the consumer on the licensed premises of a retailer. Information on the subject of wine, beer, or spirituous liquor, including but not limited to, the history, nature, quality, and characteristics of a wine, beer, or spirituous liquor, methods of harvest, production, storage, handling, and distribution of a wine, beer, or spirituous liquor, and the general development of the wine, beer, and spirituous liquor industry may be provided by a domestic brewery, microbrewery, domestic winery, distillery, distributor, certificate of approval holder, or its licensed agent to the public on the licensed premises of a retailer. The retailer requesting such activity shall attempt to schedule a series of brewery, winery, authorized representative, or distillery and distributor appearances in an effort to equitably represent the industries. Nothing in this section permits a domestic brewery, microbrewery, domestic winery, distillery, distributor, certificate of approval holder, or its licensed agent to receive compensation or financial benefit from the educational activities or product information presented on the licensed premises of a retailer. The promotional value of such educational activities or product information shall not be considered advancement of moneys or of moneys' worth within the meaning of RCW 66.28.305.
RCW 66.28.155
Effective date-2004 c 160: See note following RCW 66.04.010.