Input-Output Norms require verification that imported inputs are actually used in the declared export product and conform to permitted proportions.

Standard Input-Output Norms require determination of permissible input proportions and verification that imported inputs are those used or required in the export product. The SION entry for 4-Bromobutyronitrile (A2277) is suspended by Public Notice. Applicants must ensure imports conform to permitted uses and quantities and document their use in the declared export product.

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