HS Code Classification: The General Rules of Interpretation That Decide Your Duty

Two importers bring in the same product and pay different duty because they declared different HS codes. It happens constantly, and it is rarely a matter of opinion—classification follows a fixed method. The Harmonized System has six General Rules of Interpretation (GRI 1 to 6), applied in order, and every customs administration that uses the HS, Bangladesh included, is bound by them. If you understand the rules, you can classify your own goods defensibly, predict how an assessing officer will read a borderline item, and win a dispute when you are right. This is a working guide to the six rules.

Why a system, not a guess

The HS assigns a six-digit code to essentially every traded good, and Bangladesh extends it to eight digits in its tariff. The code drives your customs duty, supplementary duty, regulatory duty, VAT base, any concession or exemption, and whether the item is restricted. Because so much money and control ride on it, the World Customs Organization built the GRIs so that classification is reproducible: apply the same rules to the same facts and you reach the same code, whoever you are. Our introduction to HS codes for Bangladesh covers the structure; this piece is about the decision method.

GRI 1 — the texts govern

Rule 1 is the foundation and settles most cases on its own. Classification is determined by the terms of the headings and by the relevant Section and Chapter Notes. The titles of Sections and Chapters are only navigational—they have no legal force. So you find the heading whose wording actually describes your product, then you read the Notes for that Section and Chapter, because a Note can expressly include or exclude your item, or define a term in a way you would not expect.

Worked example: a Note may state that a particular Chapter does not cover goods of a certain material, sending an item you assumed belonged there to a completely different Chapter. Most misclassifications come from skipping the Notes. Read them first, every time.

GRI 2 — incomplete goods and mixtures

Rule 2(a) says an incomplete or unassembled article is classified as the complete article, provided it has the essential character of the finished good as presented. A machine imported knocked-down, or missing one minor component, is still classified as that machine. This stops importers from dodging a rate by shipping a product 95 percent assembled.

Rule 2(b) extends a heading that names a material to include mixtures and combinations of that material with others, and extends a heading for goods of a material to goods partly of that material. But 2(b) immediately creates the possibility that two headings now apply—which is what Rule 3 is for.

GRI 3 — when two or more headings apply

Rule 3 resolves competition between headings, in three sub-steps applied in strict order:

• 3(a) — the most specific description wins over a more general one. A heading naming the product beats a heading covering a broad category
• 3(b) — if 3(a) does not resolve it, mixtures, composite goods and retail sets are classified by the component that gives them their essential character. For a gift set of grooming tools, ask which item is the reason a buyer purchases the set
• 3(c) — if neither works, classify under the heading that occurs last in numerical order among those equally in contention

“Essential character” under 3(b) is where classification disputes are won and lost. It is judged on facts—bulk, quantity, weight, value, and the role the component plays in the use of the goods—not on a single factor. Document your reasoning at the time of import; it is far harder to reconstruct later.

GRI 4, 5 and 6 — the finishing rules

Rule 4 is a rarely used fallback: goods that cannot be classified by Rules 1 to 3 go to the heading for the goods to which they are most akin. In practice, with a system this detailed, Rule 4 almost never decides a real case.

Rule 5 deals with packaging. Fitted cases and containers presented with the article they are made for—a camera case with a camera, an instrument case with the instrument—are classified with that article, unless the container gives the whole its essential character. Ordinary packing materials and packing containers are classified with the goods, except when they are clearly suitable for repetitive use.

Rule 6 carries the whole method down to the subheading level: subheadings are compared only with subheadings at the same level, using the subheading texts and subheading Notes, and Rules 1 to 5 apply again within that comparison. This is why you cannot pick a favourable six-digit subheading under one four-digit heading and a favourable one under another—you first fix the heading, then work down.

Using the rules in a Bangladesh clearance

When you prepare a bill of entry, build a short classification note for any non-obvious item: the heading text you relied on, the Section and Chapter Notes you checked, and—if headings competed—which limb of Rule 3 you applied and why. If the assessing officer proposes a different code, you are then arguing rules against rules, not assertion against assertion. For a high-value or repeat item, remove the uncertainty entirely with a customs advance ruling before shipment. And if a classification drives a big duty gap, check whether a concession SRO or a preferential certificate of origin applies to the correct code.

Two classification questions and how the rules decide them

Consider a stainless-steel vacuum flask sold with a fitted carry pouch, packaged together for retail. Two headings look plausible—one for the flask, one for the textile pouch. Rule 3(a) asks for the most specific description, which does not cleanly resolve it. Rule 3(b) then asks which component gives the set its essential character: a buyer purchases this to keep a drink hot, the flask carries almost all the value and function, and the pouch is an accessory. The set classifies as the flask. Documented that way at the time of import, the classification is defensible; asserted without reasoning, it is just a claim.

Now consider a machine imported without its electric motor, the motor to be fitted locally. Rule 2(a) says an incomplete article that has the essential character of the finished article is classified as the finished article. A machine missing only its motor still has the essential character of that machine, so it classifies as the complete machine, not as parts—and at the complete-machine rate. Importers sometimes expect the reverse and are surprised at assessment; the rule is settled.

Chapter notes and the eight-digit level in Bangladesh

The six-digit HS code is common to every member country; Bangladesh adds a further two digits in its national tariff, and duty, supplementary duty, VAT treatment and any SRO concession are tied to that eight-digit line. Rule 6 is what carries the method down to that level: you compare subheadings only against subheadings at the same level, using the subheading texts and any subheading notes, applying Rules 1 to 3 again within that narrower field. You cannot mix a favourable six-digit subheading from one four-digit heading with a favourable one from another—you fix the heading first under Rule 1, then work down. And before you finalise, re-read the Section and Chapter notes for the heading you landed on, because a note can still redirect an item you thought was settled, or define a term—“parts”, “textile”, a capacity threshold—in a way that changes the eight-digit line and the rate.

We do not publish an HS code list or a duty table here, because the correct code depends on your product’s exact construction, materials and function, and the rate depends on the current tariff and any SRO. Send us the product and we will classify it against the GRIs with you. For sourcing, verification, classification support and freight as one service, contact DE International — see our services, our China buying-agent service, and the supplier catalogue.