<h1>Input-output norms require prescribed input proportions and verification that imported inputs are actually used in export products.</h1> Standard FTP input-output norms prescribe specific quantities of chemical inputs per unit of Vat Blue BC variants and the proportion of inputs usable in manufacture. The SION entry for these dyes is suspended by Public Notice No. 03/2024-25. Applicants must ensure imported goods are the exact inputs used or required in the exported product, tying import permission to actual use in export manufacture.