Rescission of customs notifications withdraws prior additional duty measures while preserving prior actions under a saving clause. The Central Government, exercising powers under the Customs Act, rescinds Notification Nos. 13/2005, 17/2005 and 20/2005 (issued 1 March 2005) that imposed additional customs duty, withdrawing their prospective effect while preserving a saving clause for actions or omissions predating the rescission.