Non-hazardous import classification and limitation principles led to rejection of extended duty demands and penalties.

Two independent accredited laboratory reports found the imported rubber process oil non-hazardous, and the earlier CRCL-based report was treated as unreliable because its PAH testing methodology was not trustworthy. On that basis, the goods were not treated as restricted. For classification, heading 2710 was held inapplicable, heading 2707 was rejected as inconsistent with the product's nature, and the goods were accepted under heading 2713 9000 as petroleum residues or extracts. The extended period of limitation was also found unsustainable because the record showed prior clearances, no provisional assessment, and no proven suppression or intent to evade duty. Confiscation, duty demands, and penalties were set aside.

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Issues: (i) whether the imported rubber process oil was hazardous or restricted on the basis of the laboratory reports and the disputed PAH analysis, (ii) whether the goods were classifiable under heading 2713 9000 rather than heading 2707 9900 or 2710 1960, and (iii) whether the duty demands raised by invoking the extended period of limitation were sustainable.

Issue (i): whether the imported rubber process oil was hazardous or restricted on the basis of the laboratory reports and the disputed PAH analysis.

Analysis: The earlier CRCL-based report was found unreliable because the actual PAH testing had been outsourced and the report did not inspire confidence on the methodology and parameters adopted. The sample was thereafter tested by two independent accredited laboratories, one directed in the writ proceedings and the other directed by the Tribunal, both of which reported that the PAH content was below the hazardous threshold and that the product was non-hazardous. The objections raised against those reports were rejected as unsupported, and the reports were treated as compliant and trustworthy for deciding hazardous nature.

Conclusion: The imported goods were held to be non-hazardous and not restricted.

Issue (ii): whether the goods were classifiable under heading 2713 9000 rather than heading 2707 9900 or 2710 1960.

Analysis: Heading 2710 was held inapplicable once the department's own case was that aromatic constituents exceeded non-aromatic constituents. Heading 2707 was also found inappropriate because the goods were not similar to the products covered by that heading and were in substance residues or extracts of petroleum oils obtained in the refining process. The Tribunal accepted the alternative classification under heading 2713 9000, relying on the nature of the product, the HSN guidance, and the departmental and technical materials referred to in the record.

Conclusion: The goods were held classifiable under heading 2713 9000.

Issue (iii): whether the duty demands raised by invoking the extended period of limitation were sustainable.

Analysis: The record showed prior clearances after testing, absence of a provisional assessment, and a genuine dispute on classification and product character rather than concealment. In those circumstances, suppression of facts or intent to evade duty was not established, and the enlarged limitation period could not be applied.

Conclusion: The extended period of limitation was held to be unsustainable.

Final Conclusion: The confiscation, duty demands, and penalties were set aside, and the appeals succeeded with consequential relief.

Ratio Decidendi: Where the earlier laboratory evidence is unreliable and two independent accredited laboratories report a product to be non-hazardous, the goods cannot be treated as hazardous merely on the basis of a doubtful report; classification must follow the most appropriate tariff heading on the product's true nature, and the extended period cannot be invoked absent suppression or intent to evade duty.

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