Trailer classification for portable air-compressors depends on towing design and coupling capability, not road registration status.

Portable air-compressor units intended for towing and designed to be coupled to a vehicle may be classified as trailers under Item 34 of the Central Excise Tariff. The decisive test was the goods' construction and function, including a towing bar, spring-mounted wheels, folding stand and hand brake, which showed suitability for attachment and transport. The tariff entry was not limited to trailers required to be registered as road vehicles under the Motor Vehicles Act. On those features, the classification as a trailer was upheld and duty under that item was validly charged.

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Issues: Whether the portable air-compressor manufactured by the petitioners was correctly classified as a trailer under Item 34 of the Central Excise Tariff.

Analysis: The goods were described in the manufacturer's literature as a compressor unit mounted on a reinforced welded tubular frame with spring-mounted pneumatic tyre wheels, together with a towing bar, folding stand and hand brake for easy transportation. The decisive test applied was whether the unit was designed for being coupled to a vehicle, and the description and features of the goods satisfied that requirement. The tariff entry was held not to be confined to trailers required to be registered under the Motor Vehicles Act for use on public roads. The earlier appellate order relied upon by the petitioners was distinguished on facts, as the present unit was fitted with over-run brakes.

Conclusion: The classification of the portable air-compressor as a trailer under Item 34 of the Central Excise Tariff was upheld, and duty under that item was validly charged.

Ratio Decidendi: For tariff classification, a unit intended for towing and designed to be coupled to a vehicle may be treated as a trailer even if it is not required to be registered as a road vehicle under the Motor Vehicles Act.

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