Preparing a written classification inquiry

Write the question before assembling the application

Describe the classification issue in a few sentences. Are two candidate headings being discussed? Is the composition unclear? Does a product combine functions? Include any existing code and the reasoning or record behind it. A useful inquiry identifies the actual product and the point needing an answer; it does not ask Customs to classify a hypothetical range of possible future designs.

A preliminary HS code and ACP review can help identify that uncertainty and the missing facts. It is a separate exercise from a written Customs inquiry. State your intended decision, such as finalising a product selection or preparing a shipment, so the next step can be chosen deliberately.

Know which response you are seeking

Japan Customs provides written advance rulings on tariff classification, requested using Form C1000. Its guidance distinguishes these from ordinary oral or email replies given for reference. A written ruling is respected at declaration when the relevant conditions are met; differences in the goods, expiry, legal changes or errors can affect that treatment.

Customs also describes conditions under which an email inquiry can be handled as a written inquiry. Do not assume an email response has that status merely because it is written on screen. Confirm the route with Customs and keep the issued response, its scope and any conditions together.

Build an inquiry about an identified product

Review the current C1000 form before preparing the pack. It asks for product identity, manufacture details, intended import information and supporting materials, including a description of manufacture, composition, structure, function, use and packaging. It also contains confirmations and notes about publication and submitted samples. Read those notes before deciding what to supply.

Collect the underlying specification rather than copying a store description into every field. Label photographs and supporting documents with the exact model. Where a fact is missing, obtain it from the manufacturer or identify the gap. Keep any suggested classification reasoning separate from the factual product description so Customs can distinguish the evidence from your position.

• Exact manufacturer, model and supplied configuration
• Factual specification with the relevant composition and function
• Photographs, catalogue pages or other matching evidence
• Proposed import arrangements and the question requiring an answer
• A contact able to provide clarification or further material

Agree who prepares, submits and keeps the response

Discuss the inquiry with your customs broker or Customs and identify who will submit it and answer follow-up questions. Share commercial deadlines as planning information, without assuming a response will arrive by a particular shipment date. If work on the product is still changing its specification, settle the relevant facts before relying on a written answer.

Once a response is issued, keep it with the reviewed specification and tell the declaration team where it is stored. Before a later shipment, compare the actual goods with that record and check the ruling's current applicability. Appointment documents, product approvals and import clearance remain separate matters from a classification response.