Input-output norms compliance required for chemical imports to match declared export use and ensure proper inputs. Importers must observe input-output norms for 1,3-Dibromo-5,5-Dimethyl Hydantoin: specified constituent inputs and proportions are prescribed, and applicants must ensure that imported goods are those used or required in the declared export product; the item is marked as suspended by Public Notice No. 03/2024-25.