<h1>Standard input-output norms require imported inputs for Sun Control Polyester Film to correspond to and be verifiable as used in exports.</h1> Standard input-output norms specify permissible inputs and their proportions for manufacture of Sun Control Polyester Film reflective two-ply with liner and Scratch Resistance coating, listing constituent materials and indicative quantities. Applicants seeking import authorisation must ensure imported inputs correspond to those used or required in the export product and adhere to the prescribed proportion determination and verification obligations.