The process of assigning HS codes is known as "HS Classification". All products can be classified in the HS by using the "General Rules for the Interpretation of the Harmonized System" ("GRI"). HS codes can be determined by a variety of factors including a product's composition, its form and its function. An example of a product classified according to its form would be whole potatoes. The classification will also change depending on whether the potatoes are fresh or frozen. Fresh potatoes are classified in position 0701.90, under the Header "Potatoes, fresh or chilled", Sub header "Other", while frozen potatoes are classified in position 0710.10 under the Header "Vegetables (uncooked or cooked by steaming or boiling in water), frozen", Subheader "Potatoes". The Harmonized System has six general interpretative rules that must be analyzed in strict order.