"Department" means the Washington state department of agriculture.

"Director" means the director of the Washington state department of agriculture or the director's authorized representative.

"Grape planting stock" means live plants, hardwood cuttings, softwood cuttings, rootstocks, and any other parts of the grape plant (vitis species), except fruit, capable of propagation.

"Official certificate" means a document issued by an official plant protection organization including but not limited to phytosanitary certificates, inspection certificates, or other letters, tags, stamps, or similar documents certifying plant quality or condition.