Tariff value fixation for select imports establishes customs valuation benchmarks and affects import duty computation and clearance. Fixation of tariff values under the Customs Act substitutes the prior non tariff notification tables and sets USD benchmark tariff values for edible oils (various palm and soybean oils), brass scrap, poppy seeds and areca nut per metric tonne, and establishes separate per unit USD tariff benchmarks for gold and silver in specified forms, clarifying eligible items and exclusions and recording the amendment to the principal notification.