Exemption notification governs duty on manufacturing waste and scrap where the residue is otherwise not dutiable.

Waste and scrap arising during manufacture from duty-paid plastic inputs were treated as exempt from central excise duty because liability under Rule 57F(4)(a) arises only where the waste is otherwise dutiable. The rule was read as pari materia with Rule 56A(3)(iv)(a), and the applicable exemption notification had to be considered in determining duty liability, not merely tariff classification. Since the scrap originated from inputs covered by Chapter 39 and the exemption applied, the waste and scrap were not liable to duty.

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Issues: Whether waste and scrap arising during manufacture from duty-paid plastic inputs was liable to duty under Rule 57F(4)(a) of the Central Excise Rules, 1944, or was exempt under Notification No. 222/86.

Analysis: The dispute turned on the scope of Rule 57F(4)(a), which permits removal of waste arising from processing of inputs on payment of duty, and whether that rule overrides an exemption notification. The rule was treated as pari materia with Rule 56A(3)(iv)(a), and the controlling principle adopted was that the direction to remove waste on payment of duty applies only where the waste is otherwise dutiable. Dutiability must be determined with reference not only to the tariff classification but also to an applicable exemption notification. Since the scrap and waste arose from duty-paid inputs covered by Chapter 39, the exemption was held applicable.

Conclusion: The waste and scrap were held to be exempt from duty, and the appeal was allowed in favour of the assessee.

Ratio Decidendi: A rule requiring removal of waste on payment of duty operates only where the waste is otherwise dutiable, and an exemption notification must be given effect in determining liability.

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