Light and medium-duty vehicles

Light-duty vehicles are defined as vehicles (including two-wheeled vehicles with side cars) with a gross vehicle weight (GVW) of up to 1.7 tonnes and a seating capacity of up to nine passengers.

Medium-duty vehicles are defined as vehicles (including two-wheeled vehicles with side cars) with a GVW of more than 1.7 tonnes up to 3.5 tonnes and a passenger capacity of up to nine.

Japan’s vehicle emission standards set two limits for each parameter, typically denoted as “mean” and “maximum” values. The “mean” values are set for a type approval limit and as a production average. The “maximum” values are set for individual limits in series production and as type approval limits if sales are less than 2,000 units per vehicle model year.

The test procedures have changed