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Emissions standards in Japan are the joint responsibility of the Ministry of Environment (MOE) and the Ministry of Land, Infrastructure and Transport (MLIT). New emissions standards for diesel heavy duty vehicles were introduced in 2016; OBD requirements were also updated. Previously, the Post New Long Term (PNLT) standards applied, for both gasoline and diesel vehicles, since October 2009.
Emissions standards
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Overview
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Emissions limits - diesel vehicles
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Emissions limits - gasoline and LPG vehicles
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PN requirements
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Not-to-exceed requirements
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Durability requirements
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Test Procedures
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WHTC and WHSC
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JE05 Cycle
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On-board diagnostics
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Historical Data
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PNLT standards - diesel vehicles
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Japan 05 (JP05)
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New Short Term Standards (2001 - 2005)
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Initial Standards
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References
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