Although not law, some tire manufacturers do not Tire manufactured in 10th week of 2001 suggest using a "new" tire that has been sitting on the shelf for more than six years (Ford Motor Company) or 10 years (Cooper Tire citing a tire association recommendation).[24] JATMA, the Japanese Automotive Tyre Manufacturers Association recommends that all tires be inspected at five years, and all tires that were manufactured more than ten years previous be replaced.[25] E4: Tire approved according to the ECE-regulations, the number indicating the country of approval.