Customs duty change for Integrated Receiver Decoder: tariff entry and effective duty rate amended by notification. Amendment to Notification No. 21/2002-Cus inserts S. No. 316D in the Table, classifying 'Integrated Receiver Decoder, also known as Set-top Box' under tariff heading 8528 and replacing the prior proviso clause to make the revised entry effective for goods specified against serial No. '(c) 316D' on or after the stated effective date, as effected by Notification No. 3/2004-Cus dated 7-1-2004.