Tariff classification follows binding precedent where no technical evidence supports a different heading.

Wave trap/line trap classification turned on whether the goods belonged under tariff heading 8541 or 8517, but the earlier binding ruling treating the item as a part of power line carrier communication equipment under 8537 was applied. The Department produced no technical literature to justify a different classification, so the prior classification position prevailed. On that basis, the impugned classification order was maintained and the departmental challenge failed.

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Issues: Whether wave trap/line trap was classifiable under tariff heading 8541 as claimed by the assessee or under tariff heading 8517 as claimed by the Department.

Analysis: The Department produced no technical literature to support classification under 8517. The assessee relied on an earlier decision holding the item to be a part of power line carrier communication equipment and classifiable under 8537, and that view had been affirmed by the Supreme Court. In that background, the item was treated as falling within the appropriate tariff classification consistent with the earlier binding decision.

Conclusion: The appeal was not accepted and the Department's challenge to the classification failed.

Final Conclusion: The impugned classification order stood and the departmental appeal was rejected.

Ratio Decidendi: Where a product is shown to be covered by an earlier binding classification ruling and the Department adduces no technical material to justify a different heading, the prior classification will prevail.

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