RCW 70.155.040: Cigarettes must be sold in original package—Exception.

No person shall sell or permit to be sold cigarettes not in the original unopened package or container to which the stamps required by RCW 82.24.060 have been affixed.

This section does not apply to the sale of loose leaf tobacco by a retail business that generates a minimum of sixty percent of annual gross sales from the sale of tobacco products.