Input-output norms require imported inputs to match prescribed uses and proportions under the foreign trade policy for exports.

Standard Input-Output Norms list specified chemical inputs and per unit quantities for Acid Black 194 (49% dye content) and record that the SION has been suspended. The norms require determination of the proportion of various inputs usable or required in producing export products and impose that applicants shall ensure imported goods correspond to those used or required in the export product, creating an import control and verification obligation under the Foreign Trade Policy.

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