No. 4 Fuel Oil (Standard Grade) from Canada
A medium-viscosity distillate fuel oil with a Saybolt Universal viscosity at 37.8°C between 45 and 125 seconds, classified under HTS 2710.20.0510 due to its API gravity under 25 degrees and specific viscosity range defining No. 4-type fuel oils. Primarily used for industrial heating and marine applications where higher viscosity provides stable combustion.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Obtain lab certification confirming Saybolt viscosity (45-125 sec at 37.8°C) and API gravity under 25° to avoid reclassification
• Include bill of lading specifying volume in barrels (158.98L at 15.6°C) and any biodiesel content for accurate duty calculation
• Ensure compliance with EPA fuel quality standards; common pitfall is mislabeling as lighter distillates leading to audits