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How to get the NOx rating for a Japanese imported BMW 523d?

Hi there,

I just imported a 2019 BMW 523d and I found the CO2 value from MLIT, but the NOx emissions rating is not on the spreadsheet; could you help me please?

Jason (Dublin 14)

Feb 2026 Filed under: importing


Expert answer

Hi Jason,

The NOx rating is proving to be very difficult to find for many buyers of used Japanese cars and most of the time it is not on the MILT site.

We've discovered that it may be possible to obtain a Certificate of Conformity from the Japan Inspection Organization, though we've not used the process ourselves. Click on the link to read up on how to do this.

Shane O' Donoghue - Complete Car Advisor


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