Washington Revised Code Title 76. Forests and Forest Products § 76.36.020. Forest products to be marked

Persons who wish to identify any of their forest products which will be stored or transported in or on the waters of the state shall place a registered mark or brand in a conspicuous place on each forest product item. Placement of the registered mark or brand is prima facie evidence of ownership over forest product items which have escaped from storage or transportation. Unbranded or unmarked stray logs or forest products become the property of the state when recovered.