Input-output norms for leather footwear govern permissible inputs, measurement bases, and substitution rules for waterproof components.

Input-output norms specify allowed input categories and measurement bases for Gents Leather Sandal Upper production, including accessories, reinforcement, linings, footbed, toe cap, welt, laces, labels and finished leather, with many items designated as Net, Net plus wastage, or Net to Net. Miscellaneous consumables and tooling are permitted within a collective allowance tied to export value under the public notice; processing chemicals follow the General Notes for Leather and Leather Products, finished leather made from wet blue/wet white/crust excludes the finished leather input, and waterproof footwear permits substitution of waterproof labels.

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