Compare the facts
Match materials, manufacturing, dimensions, function and origin—not just the product name.
← Kartash homeDiscuss a ruling →
Classification research
Research the decision behind the tariff number.
CBP ruling letters can help explain how particular product facts were evaluated. Use the official database as a research starting point, then review whether a decision fits your goods.
Read beyond the HTS number.
Check the status
Look for modifications or revocations, later decisions and changes to the tariff schedule.
Know the limits
Another importer’s ruling is not a blanket approval for your shipment. A binding ruling request may be appropriate when facts need a formal decision.
Want help applying what you found?
Send the ruling reference, a description of your goods and the question you need answered. We can discuss a classification review or the information needed for a binding ruling request.
Request a classification review →Keep the research together
Look up current HTS rates →Search trade developments →Read the ruling’s legal effect in 19 CFR 177.9 ↗General information for planning only. Requirements depend on the goods, parties and entry date. Verify current agency instructions and have Kartash review your shipment before filing or relying on an estimate.
Turn research into a filing decision.
Tell us what you are importing and where it is coming from. We’ll help identify the next step.