2710.19.11.05 - Containing not more than 15 ppm of sulfur

This HTS classification, 2710.19.11.05, specifically covers distillate and residual fuel oils that have a specific gravity of 25 degrees API or greater and a Saybolt Universal viscosity at 37.8°C of less than 45 seconds. These are commonly referred to as "light fuel oils." The critical defining characteristic for this subcategory is that the fuel oil must contain **not more than 15 parts per million (ppm) of sulfur**. This low sulfur content is a key factor in its specific classification and often relates to environmental regulations and applications where sulfur emissions are strictly controlled.

This category is distinct from its sibling classifications due to its precise sulfur threshold. HTS code 2710.19.11.07 covers similar fuel oils but with a higher sulfur content, ranging from more than 15 ppm up to 500 ppm. Furthermore, HTS code 2710.19.11.08 encompasses fuel oils with an even greater sulfur concentration, exceeding 500 ppm. Therefore, the determination of whether a fuel oil falls under 2710.19.11.05 hinges entirely on its sulfur analysis, with the limit set at a maximum of 15 ppm.

As this is a leaf node within the HTS classification system, there are no further subcategories for 2710.19.11.05. Classification at this level is final, and goods meeting the specified criteria for API gravity, Saybolt viscosity, and exceptionally low sulfur content are definitively placed here. Examples of such products could include certain grades of diesel fuel, heating oils, or other specialized light fuel oils intended for use in applications demanding minimal sulfur emissions, such as in power generation or specific industrial processes where stringent environmental standards must be met.