Anti-dumping duty continuation on nylon filament yarn extended under Customs Tariff Act, preserving existing import restrictions. Pursuant to powers under the Customs Tariff Act and the anti-dumping rules, the Central Government substitutes paragraph 3 of the principal notification to set a new terminal date for the continued operation of the anti-dumping duty on specified nylon filament yarn imports, thereby extending the duration of the existing measure while preserving the original scope and exclusions.