<h1>Input-output norms require that imported inputs for PCB drill exports match the inputs used in export production.</h1> Standard input output norms define permitted PCB drill and blank specifications and ancillary consumables, note a suspension entry, allow certain ancillary items up to 5% of FOB value, require determination of input proportions for resultant products, and obligate applicants to ensure that imported goods are those used or required in the export product.