<h1>Input-Output Norms for Reversible Tapping Chucks (TA-20) Permitted Inputs, Proportions, and Suspension Notice Effective 03-05-2024</h1> Standard input-output norms under the Foreign Trade Policy for reversible tapping chucks TA 20 list permitted inputs and proportions: alloy steel rounds/bars at 2.47 kg per kg of export product; deep groove ball bearings, shoulder/sleeve bearings, shims, and discs/retaining rings on a net-to-net basis. The provision was suspended by public notice dated 03-05-2024. Applicants must ensure that imported items correspond to those actually used or required in the manufacture of the exported product, and proportions of various inputs must be determined and adhered to in production.