FMVSS 139

New Pneumatic Radial Tires for Light Vehicles

This Standard applies to new pneumatic tires for use on MPVs, trucks, trailers and buses with a GVWR of 10,000 lbs. (4,536 kg) or less and that were manufactured after 1975. It specifies tire dimensions, test requirements, labeling requirements and defines tire load ratings.

Applicability:

Trucks & MPVs 10,000 GVWR or Less Yes
Trucks More than 10,000 GVWR No 
Buses 10,000 GVWR or Less Yes
Buses More than 10,000 GVWR No 
Trailers Yes

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