NOM-163-SEMARNAT-ENER-SCFI-2013: Emissions of carbon dioxide (CO2) from the exhaust and its equivalence in terms of fuel efficiency, applicable to new automotive vehicles with gross vehicle weight of up to 3,857 kilograms

Last updated: 18 July 2019
The standard establishes the parameters of carbon dioxide emissions expressed in grams of carbon dioxide per kilometer (g CO2/km) and its equivalence in terms of fuel efficiency expressed in kilometers per liter (km/l) for new light-duty automotive vehicles, with gross vehicle weight not exceeding 3 857 kg, which use gasoline or diesel as a fuel. See the attachment for the efficiency levels.

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