2710.19.11.13 - Containing more than 15 ppm but not more than 500 ppm of sulfur

This HTS classification, 2710.19.11.13, specifically identifies certain light fuel oils that fall within the broader category of distillate and residual fuel oils testing 25 degrees API or more and exhibiting a Saybolt Universal viscosity at 37.8°C of less than 45 seconds. The defining characteristic of products within this subcategory is their sulfur content, which must be greater than 15 parts per million (ppm) but not exceed 500 ppm. These oils are typically used as fuels in internal combustion engines, boilers, and furnaces where specific sulfur limitations are mandated due to environmental regulations or the requirements of specialized equipment.

Crucially, this category is distinguished from its sibling, 2710.19.11.11, by a higher sulfur content. While both fall under light fuel oils, the former is for those with exceptionally low sulfur content (not more than 15 ppm), whereas this classification addresses oils with a moderate but still regulated level of sulfur. It is also differentiated from 2710.19.11.14, which covers oils with significantly higher sulfur concentrations (more than 500 ppm).

As this HTS code represents a leaf node, there are no further subcategories for this specific classification. Therefore, accurate classification relies solely on meeting the outlined criteria for sulfur content, viscosity, API gravity, and the general nature of the petroleum oil or preparation. Classification professionals should ensure that the commodity's documented sulfur analysis falls precisely within the specified range to correctly assign it to this subcategory.