2710.19.06.35 - Other

This HTS category, 2710.19.06.35, specifically classifies "Other" distillate and residual fuel oils that meet the criteria of being tested under 25 degrees A.P.I. and having a Saybolt Universal viscosity at 37.8°C of more than 125 seconds. These are commonly referred to as heavy fuel oils. The classification hinges on precise physical properties, indicating a heavier, more viscous type of fuel oil compared to lighter fractions.

Distinguishing this category from its siblings, 2710.19.06.25 (Fuel oil No. 5) and 2710.19.06.30 (Fuel oil No. 6), is crucial. While all fall under the umbrella of distillate and residual fuel oils tested under 25 degrees A.P.I. and exhibiting higher viscosity, this specific subcategory is intended for heavy fuel oils that do not fit into the more precisely defined "Fuel oil No. 5" or "Fuel oil No. 6" classifications. It serves as a residual category for heavy fuel oils that might have slightly different blending characteristics or specific applications not covered by the more narrowly defined numerical fuel oil grades.

As this node is a leaf node within the HTS structure, there are no further subcategories. Classification within 2710.19.06.35 therefore relies entirely on the explicit testing parameters: a density below 25 degrees A.P.I. (indicating a heavier oil) and a Saybolt Universal viscosity exceeding 125 seconds at 37.8°C (confirming its "heavy" nature). Importers must ensure their product meets these specific physical property thresholds to accurately classify it under this heading, differentiating it from other fuel oil types.