Standard input-output norms amended: additions and corrections update product-specific import requirements and add new entries to the handbook. Amendment to the Handbook of Procedures Vol. 2 revises the Standard Input-Output Norms by prescribing corrections, substitutions and additions to product-specific input requirements and inserting new SION entries across Chemicals and Allied Products, Engineering Products, Sports Goods, Textile Products and Miscellaneous Products. Annexure A lists targeted amendments to existing entries (revised input lists, quantities, deletions and renumbering), while Annexures B-F set out the new operative SION entries with detailed import-item descriptions, alternative inputs and quantitative norms to be incorporated into the handbook.