<h1>Standard Input-Output Norms require imported inputs to match declared proportions and actual use in export products.</h1> Standard Input-Output Norms require that permitted inputs and their proportions for manufacturing export products be determined and recorded, exemplified by chemical entries including Dark Brown 5R (Acid Brown 48); applicants must ensure imported goods correspond to the inputs actually used or required in the declared export product, and certain listed items may be suspended by public notice.