Status

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Emissions legislation in Mexico is the responsibility of the Environment Ministry, SEMARNAT (Secretariat of Environment and Natural Resources). In 2005, it implemented legislation requiring passenger cars and light duty trucks (LDTs) to be homologated to emission limits and procedures based on either US Tier 2 or Euro 4 standards. The standards are being progressively phased in.

Vehicle Categories

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Emissions standards

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• Introduction
• Tier 2 based standards
• EU based standards
• Implementation schedule

Introduction

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Tier 2 based standards

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EU based standards

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Implementation schedule

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In-use emissions standards

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• Diesel vehicles
• Gasoline vehicles
• Mexico City

Diesel vehicles

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Gasoline vehicles

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Mexico City

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Historical Data

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• Superseded emissions standards

Superseded emissions standards

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References

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