Mexico is on track to introduce the Euro VI or US 2010 standard in January 2019 with a regulation that will make the standard mandatory for all new heavy-duty trucks and buses starting January 1, 2021.


Big rigs like this one will have to comply with emissions limits throughout Mexico under new regulations.
(Photo by Jeremy Rempel)



When fully implemented the standard is expected to save between 6,000 and 7,000 lives a year.


The Official Mexican Standard NOM-044-SEMARNAT-2017, approved last year by the Secretariat of Environment and Natural Resources, established maximum emission limits for: carbon monoxide, nitrogen oxides, non-methane hydrocarbons, non-methane hydrocarbons plus nitrogen oxides, particles and ammonia, from the exhaust of new heavy-duty, diesel-fueled engines.


The diesel particulate filters required for compliance with Euro VI and US 2010 standards reduce the number of particles emitted by 99.9 percent compared to any diesel vehicle meeting a prior emission standard, including Euro V-compliant vehicles that are allowed through 2020.


This regulation is forecast to have far-reaching effects. Mexico is the second-largest manufacturer and market for heavy-duty vehicles in Latin America, after Brazil, and many of the trucks and buses sold in Mexico are marketed across the region.


The new emissions limits are expected to improve the health of everyone in Mexico, with the greatest impact in the urban areas where traffic emissions are thick.


Full implementation will result in a reduction of nitrogen oxide (NOx) emissions by 90 percent or more and black carbon by more than 95 percent.


The latest analysis from the International Council on Clean Transportation (ICCT) suggests that even though heavy-duty vehicles make up only five percent of the on-road fleet in Mexico, they are responsible for more than two-thirds of the health impacts caused by the country's on-road transportation sector.


Analysis by the ICCT indicates that in 2030 commercially available technologies could reduce the fuel consumption of long-haul tractor-trailers by 43% at payback periods of less than three years, delivering net economic benefits to transport operators. Long-haul tractor-trailers are responsible for the largest share of CO2 emissions from freight transportation.


The ICCT estimates that 40 percent of new heavy-duty vehicles sold globally are already meeting soot-free, clean vehicle standards, and says that 80 percent of heavy-duty vehicles will be required to be soot-free by 2021.


Argentina, Brazil and South Korea are all in various stages of developing policies to improve the fuel-efficiency of their commercial vehicle fleets. The European Union, the United States, Canada, China, Japan, and India have established heavy-duty vehicle efficiency regulations.


By Sunny Lewis

Environment News Service (ENS)

June 11, 2018