Deletion of Sodium Dithionate as permissible input under SION entries reduces permissible inputs and takes immediate effect. The Handbook of Procedures (Vol. II) deletes Sodium Dithionate (Hy-drose) as a permissible input from SION entries G-7 and G-46 in the Leather Product Group, reducing permissible inputs in those entries from forty-three to forty-two, effective immediately, with no change to descriptions or quantities of other inputs.