Light Duty Vehicles CO2 Emissions Standards

Category: Executive

Document Type: Rules

Role: Information Webpage

Mexico's 2013 Light-Duty Vehicle CO2 and Fuel Economy Standards (NOM-163)

Mexico's NORMA Oficial Mexicana NOM-163-SEMARNAT-ENER-SCFI-2013 (NOM-163), published on June 21, 2013, establishes regulations for carbon dioxide (CO2) emissions and equivalent fuel economy for new light-duty vehicles. The regulation applies to automobiles, including cars, pickup trucks, and SUVs, with a gross vehicle weight of up to 3,857 kilograms, for model years 2014 through 2016. The purpose of this standard is to mitigate climate change by setting efficiency requirements for new vehicles, as mandated by the General Law on Climate Change (Ley General de Cambio Climático) signed in 2012. Key obligations include meeting specific CO2 emission limits and fuel economy equivalents. For the year 2016, the regulation sets varying emission limits based on vehicle footprint: for light-duty trucks, limits range from 163.6 gCO2/km (for vehicles with a surface area less than 3.81m2) to 227.6 gCO2/km (for vehicles with a surface area greater than 6.13m2); for passenger cars, limits range from 135 gCO2/km (for vehicles with a surface area less than 3.81m2) to 180 gCO2/km (for vehicles with a surface area greater than 5.20m2). The standard is expected to result in a new car fleet average fuel economy of 14.6 km/L in 2016, assuming full use of available credits (excluding banking and trading). Affected sectors are car manufacturers. Compliance dates are tied to vehicle model years 2014-2016. Companies exceeding the performance limits can earn transferable (tradable) credits for reduced emissions, and early action credits were available for model years 2012 and 2013.

How Climate Copilot helps

  • Get alerts when policies like this change or new ones appear in your sector.
  • Ask AI to summarise, extract obligations, and answer questions — with citations.
  • Organise notes and your own documents alongside the source material.

No signup needed.

Full text:

© InTErnATIOnAL COUnCIL On CLEAn TrAnsPOrTATIOn
POLICY UPDATE July 2013
Mexico light-duty vehicle co and fuel
2
econoMy standards
On june 21, 2013, the mexican government published final standards regulating CO
2
ICCT Policy uPdates emissions and the fuel economy equivalent for new passenger vehicles, including cars,
pickup trucks, and sUVs. The final standard, titled nOm-163-sEmArnAT-EnEr-sCFI-
sUmmArIzE
2013,1 Tailpipe emissions of carbon dioxide (CO ) and the equivalence in terms of fuel
rEgULATOrY 2
economy, applicable to new automobiles of up to 3,857 kilograms of gross vehicle weight,
AnD OThEr
will apply to vehicle model years 2014 through 2016. Automakers may take advantage of
DEVELOPmEnTs early action credits for model years 2012 and 2013. Taking into account all annual credits
rELATED TO CLEAn but not credit banking and trading, the standard is expected to result in a new car fleet
average fuel economy of 14.6 km/L in 2016.2
TrAnsPOrTATIOn
WOrLDWIDE.
Background
Three federal ministries in mexico—the ministry of the Environment and natural re-
sources (sEmArnAT), the ministry of Energy (sEnEr), and the ministry of the Economy
(sE), together with the national Institute of Ecology and Climate Change (InECC), which
is the research arm of sEmArnAT—have been working together since 2009 to develop
nOm-163. mexico has not had fuel economy standards or labeling requirements in place
for passenger vehicles since 1990.
This standard is one of the first regulations to execute part of the general Law on Climate
Change, signed in 2012, which requires mitigation of climate change through such actions
as establishing efficiency standards for new vehicles.3
1 NORMA Oficial Mexicana NOM-163-SEMARNAT-ENER-SCFI-2013, Emisiones de bióxido de carbono (CO2)
provenientes del escape y su equivalencia en términos de rendimiento de combustible, aplicable a vehículos
automotores nuevos de peso bruto vehicular de hasta 3 857 kilogramos, DOF: 21/06/2013: http://dof.gob.mx/
nota_detalle.php?codigo=5303391&fecha=21/06/2013
2 This estimation assumes the manufacturers have the same sales composition (average vehicle size and fleet
mix) as in 2010 and are exercising full use of available credits, with exception of early action credits (for model
years 2012 and 2013) and banking and trading of credits between years and among manufacturers.
3 Ley general de Cambio Climático, nueva Ley DOF 06-06-2012: http://www.diputados.gob.mx/LeyesBiblio/pdf/
LgCC.pdf.
www.theicct.org COmmUnICATIOns@ThEICCT .Org | BEIjIng | BErLIn | BrUssELs | sAn FrAnCIsCO | W AshIngTOn

ICCT POLICY UPDATE
the current situation
new light vehicles sold in 2011 averaged 13.1 km/L, up from 11.8 km/L in 2008,4 which is
an 11% increase in fuel efficiency and a 3.5% annual rate of improvement. In terms of CO
2
emissions, new vehicles decreased from a fleet average of 198 gCO /km in 2008 to 180
2
gCO /km in 2011 a 9.3% reduction.
2

Tags: Regulation, Climate Change, Ghg, Transport, Car Manufacturing, Energy Efficiency, Compliance, Deadline, Policy

Sector: Transport

Original Source