Customs tariff classification of crank shafts turned on persuasive CCCN Explanatory Notes, not the pump heading claimed

Crank shafts imported for vacuum pumps were held not classifiable as parts of pumps under Heading 84.11, because the tariff scheme read with the CCCN Explanatory Notes placed crank shafts outside the pump heading. The notes were treated as a highly persuasive aid for achieving uniform customs classification, and where they clearly directed the goods to another heading, that classification prevailed over a more favourable alternative. Although a favourable interpretation is generally preferred where two views are possible, it could not override the tariff notes on these facts.

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Issues: Whether crank shafts imported for vacuum pumps were classifiable as parts of pumps under Heading 84.11 or as transmission shafts and cranks under Heading 84.

Analysis: The goods were internal parts of a pump and had no independent general utility, but the classification exercise was governed by the tariff scheme read with the CCCN Explanatory Notes, which were treated as a highly persuasive interpretative aid for achieving uniformity in customs classification. The notes specifically indicated that crank shafts fell outside the heading for pumps and were classifiable elsewhere under the tariff. In fiscal classification, where two plausible views exist, the interpretation favourable to the assessee is ordinarily preferred; however, on the tariff and explanatory notes applied here, the proper classification was not under the pump heading.

Conclusion: The import was not classifiable as parts of pumps under Heading 84.11 and the appeal was rejected.

Ratio Decidendi: In customs tariff classification, authoritative explanatory notes may properly be used as a persuasive guide to ensure uniformity, and where the tariff notes clearly place the goods under a different heading, that classification prevails over a more favourable but unsustainable alternative.

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