Extension of anti-dumping duty: Acrylonitrile Butadiene Rubber levy maintained for a further limited period by administrative order. An administrative amendment extends the anti-dumping duty on Acrylonitrile Butadiene Rubber by substituting a later expiry date for the earlier one in the principal customs notification, invoking statutory powers under the Customs Tariff Act and the anti-dumping rules to maintain the levy pending completion of the designated authority's review.