The Düzce Provincial Directorate of Agriculture and Forestry in Turkey has applied for the geographical registration of three products: apple cider vinegar, hazelnut tahini halvah, and chestnuts. These products are currently under evaluation at the Turkish Patent and Trademark Office. The directorate's goal is to ensure that products unique to Düzce are properly registered and not found in other cities. The directorate has already registered 11 such products with the office.