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Approvals and Certifications

RefExh (registered as the “Duet Burn System” in Japan) has been certified for use with the following diesel engines in Japan as the first system approved under the “NOx /PM Law” by the Ministry of Land, Infrastructure, Transport and Tourism Certified Recommended Reduction Systems under NOx /PM Law MLIT-NPR-1, 3, 4, 12). RefExh is also designated as a system for the reduction of particulate matter, as jointly declared by eight prefectures (No. 036-D).

Applicable diesel engine models


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