Input-Output norms for seafood imports tie permitted packaging and additives to export product composition and use. Standard Input-Output Norms prescribe permissible imported inputs, packaging materials and maximum additive weights for specified IQF and chilled fish and marine export products. The schedule ties allowed inputs and packaging to particular product entries and limits certain additives to specific export items. Applicants must follow the proportion determination mechanism and ensure imported goods are those actually used or required in the export product, with imports subject to verification against the export manufacture.