WAC 246-215-06225. Cleanability — Wall and ceiling coverings and coatings (FDA Food Code 6-201.16)

(1) Wall and ceiling covering materials must be attached so that they are easily cleanable . (2) Except in areas used only for dry storage , concrete, porous blocks, or bricks used for indoor wall construction must be finished and sealed to provide a smooth , nonabsorbent, easily cleanable surface.