Standard Input-Output Norms amendments add product-specific input requirements and operational compliance conditions for export licences. Amendments to the Standard Input-Output Norms revise, delete and add product-specific import-input norms across chemicals, engineering, food and miscellaneous products (new entries A3562-A3568, C2018-C2020, E119-E120, K172-K176). Corrections in Annexure A adjust descriptions, quantities and alternative inputs; some norms permit inputs as a percentage of FOB value. Specified operational constraints include CIF caps on inputs for certain SIONs, limits on pure medicine/vitamin content in premixes, prohibition of DFRCs under designated SIONs, and mandatory stock registers with quarterly verification until export obligations are completed.