The Ministry of Energy and Mines (MEM) of Guatemala has announced a significant reduction in the sulfur content of diesel fuel sold in the country. The new regulation, established by Ministerial Agreement 393-2025, will lower the maximum sulfur content from 500 parts per million (ppm) to 15 ppm. This adjustment aligns Guatemala with international standards for ultra-low sulfur diesel and is expected to bring several benefits to public health and the environment.
According to MEM, this change will come into effect on June 1, 2026. The transition period is intended to allow distributors time to use up existing inventories and adjust their logistical processes.
"This is another step in MEM's commitment for Guatemala to move towards cleaner fuels, compatible with new technologies, favorable for the health of citizens and also with the environment," stated the Ministry.
The reduction in sulfur content is expected to improve air quality by decreasing emissions of fine particles and sulfur oxides—pollutants associated with smog and respiratory illnesses. Health benefits are anticipated particularly for children, elderly people, and those with cardiopulmonary conditions due to a likely reduction in cases of asthma, chronic bronchitis, and cardiovascular diseases.
The use of low-sulfur fuels also allows vehicles to adopt more modern emission control technologies and extends the lifespan of engines and filtration systems. Environmental improvements include a decrease in acid rain formation and enhanced ecosystem quality in both urban and rural areas.
With this decision, Guatemala joins countries such as the United States, Mexico, Argentina, and Colombia in using ultra-low sulfur diesel. MEM highlighted that this measure not only supports citizens' well-being but also strengthens regional competitiveness by facilitating the adoption of cleaner vehicle technologies.
"This is a decisive step forward toward a more sustainable energy matrix and fuels compatible with new environmental requirements. The transition will not only benefit citizens but also represents a strategic investment in the country's future," MEM emphasized.
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