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Emissions legislation in Thailand is the responsibility of the Ministry of Natural Resources and Environment and the Ministry of Industry. Thailand adopts the vehicle emissions standards of the European Union. Euro 5 emissions standards apply for diesel light duty vehicles; Euro 6 emissions standards are in place for SI engine light duty vehicles, from 1 January 2025. 

Emissions standards

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• Overview
• Euro 6 - SI engine vehicles
• Euro 5 - CI engine vehicles

Overview

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Euro 6 - SI engine vehicles

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Euro 5 - CI engine vehicles

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Historical Data

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• Euro 4 - SI engine vehicles
• Euro 4 - diesel engine vehicles
• Euro 3

Euro 4 - SI engine vehicles

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Euro 4 - diesel engine vehicles

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Euro 3

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References

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