In late 2003, the U.S. Rubber Manufacturers Association (RMA) Tire Engineering Policy Committee held meetings chaired by a Bridgestone representative and attended by representatives of Continental, Cooper, Goodyear, Michelin, and Pirelli. The committee drafted this recommendation for maximum service life for light-truck and passenger car tires:

While most tires will need replacement before
10 years, it is recommended that any
tires in service older than 10 years from the
date of manufacture be replaced with new
tires as a simple precaution (including
spare tires), even if such tires appear serviceable
(or even if such tires have not
reached the legal wear limit). (24)


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