Norway HS Code

HS Code 400231: Isobuteneisoprene (butyl) rubber (IIR); haloisobuteneisoprene rubber (CIIR or BIIR) : Isobuteneisoprene (butyl) rubber (IIR) in Norway

Q: Is HS code 400231 the same across all countries?

Yes — up to the 6-digit level, HS code 400231 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. Norway extends it under HS-NO.

Q: What system does Norway use to classify HS code 400231?

Norway classifies products under the Norwegian Customs Tariff (HS-NO; locally Tolltariffen), which extends HS codes to 8 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 400231 in Norway?

The official source is https://www.toll.no/en/. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 400231 in Norway

Under Norway's Norwegian Customs Tariff (Tolltariffen), HS Code 400231 is the WCO Harmonized System subheading for Isobuteneisoprene (butyl) rubber (IIR); haloisobuteneisoprene rubber (CIIR or BIIR) : Isobuteneisoprene (butyl) rubber (IIR). This is the most detailed internationally standardized level; Norway extends classifications to 8 digits under its national tariff system. 400231 belongs to Section VII: Plastics and articles thereof; rubber and articles thereof, Chapter 40: Rubber and articles thereof, Heading 4002: Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip.

Explore more 2026 Latest Norway import export trade data and shipment records for HS Code Butyl Rubber (IIR) on TradeInt global trade data platform

Classification Path of HS Code 400231 in Norway

Section VII

Chapters (39-40) Plastics and articles thereof; rubber and articles thereof

Chapter 40

Rubber and articles thereof

HS Code 4002

Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip

HS Code 400231

Isobuteneisoprene (butyl) rubber (IIR); haloisobuteneisoprene rubber (CIIR or BIIR) : Isobuteneisoprene (butyl) rubber (IIR)

HS Code 40023100

Isobutylene isoprene rubber IIR, in primary forms or in plates, sheets or strip Isobuten-isoprengummi (butylgummi)(IIR), ubearbeidd el som plater, duk el bånd (2016-) (M1=kg, M2=nei)

HS Code 40023110

Subgroup of: 400231 Isobutylene isoprene rubber IIR, in primary forms or in plates, sheets or strip Isobuten-isoprengummi (butylgummi)(IIR), i fast form, ubearbeidd el som plater, duk el bånd (1988-2015) (M1=kg, M2=nei)

HS Code 40023190

Subgroup of: 400231 Isobutylene isoprene rubber IIR, in primary forms or in plates, sheets or strip Isobuten-isoprengummi (butylgummi)(IIR), ikke fast form, ubearbeidd el som plater, duk el bånd (1988-2015) (M1=kg, M2=nei)

Norway Tariff Classification: Norwegian Customs Tariff (HS-NO)

In Norway, HS 400231 is classified under the Norwegian Customs Tariff (Tolltariffen) — a 8-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Norwegian Customs Tariff (HS-NO)

Local name Tolltariffen

Digits 8

Official source https://www.toll.no/en/

You know what 400231 means. Now see 2026 latest real trade activity for Butyl Rubber (IIR) in Norway.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

Search 2026 Latest Norway Import Data Search 2026 Latest Norway Export Data

Top Trading Product of HS Code 4002

Top Norway import Product Under HS Code 4002

1 400219: Styrenebutadiene rubber (SBR); carboxylated styrenebutadiene rubber (XSBR) : Other $7.7M 2 400211: Styrenebutadiene rubber (SBR); carboxylated styrenebutadiene rubber (XSBR) : Latex $2.5M 3 400299: Other : Other $1.7M

Figures shown for 2025.

For more 2026 recent data, search for Norway import trade records

Top Norway export Product Under HS Code 4002

1 400211: Styrenebutadiene rubber (SBR); carboxylated styrenebutadiene rubber (XSBR) : Latex $2.1M 2 400219: Styrenebutadiene rubber (SBR); carboxylated styrenebutadiene rubber (XSBR) : Other $1.3M 3 400299: Other : Other $146.1K

Figures shown for 2025.

For more 2026 recent data, search for Norway export trade records

Related HS Code to Norway Butyl Rubber (IIR) (400231)

HS Code 40023100

Isobutylene isoprene rubber IIR, in primary forms or in plates, sheets or strip

HS Code 40023110

Subgroup of: 400231 Isobutylene isoprene rubber IIR, in primary forms or in plates, sheets or strip

HS Code 40023190

Subgroup of: 400231 Isobutylene isoprene rubber IIR, in primary forms or in plates, sheets or strip

HS Code 400211

Styrenebutadiene rubber (SBR); carboxylated styrenebutadiene rubber (XSBR) : Latex

HS Code 400219

Styrenebutadiene rubber (SBR); carboxylated styrenebutadiene rubber (XSBR) : Other

HS Code 400220

Butadiene rubber (BR)

HS Code 400239

Isobuteneisoprene (butyl) rubber (IIR); haloisobuteneisoprene rubber (CIIR or BIIR) : Other

HS Code 400241

Chloroprene (chlorobutadiene) rubber (CR) : Latex

HS Code 400249

Chloroprene (chlorobutadiene) rubber (CR) : Other

HS Code 400251

Acrylonitrilebutadiene rubber (NBR) : Latex

Frequently Asked Questions

What is HS code 400231 in Norway?

HS code 400231 covers Isobuteneisoprene (butyl) rubber (IIR); haloisobuteneisoprene rubber (CIIR or BIIR) : Isobuteneisoprene (butyl) rubber (IIR) in Norway. It sits in Chapter 40 (Rubber and articles thereof), Heading 4002 of the Harmonized System, and is classified under HS-NO.

Is HS code 400231 the same across all countries?

What system does Norway use to classify HS code 400231?

Where can I officially look up HS code 400231 in Norway?