Any business selling regulated articles under WAC 16-470-710 (4) or (7) which is located within the interior quarantine area (see WAC 16-470-705(2)) must post signage which is clearly visible at all business entrances, as well as points of sale and aisles in areas where these regulated articles are being sold. Businesses must use signage developed by or approved by the department, which must clearly state that regulated articles purchased cannot be transported outside of the quarantine area. Signs may be found on the department's website at http://agr.wa.gov/beetles and must be a minimum of 8.5" x 11" in size.