<h1>Input output norms for sports goods govern permitted imported components and require imports to match use in export manufacture.</h1> Standard input output norms specify permitted imported inputs and indicative quantities for manufacture of size 3 sports balls composed of synthetic rubber nitrile/SBR with cotton or polyester/viscose fabric layers and a butyl or latex bladder, including specifications for rubber compound, fabric area per layer, bladder count, adhesive per layer, and ink; deleted schedule entries are noted and applicants must ensure imported goods match those used or required in the export product and adhere to determined input proportions.