Safeguard measures: Director-General to investigate injury from preferential imports and recommend suspension or increase of customs duty. Director-General must investigate serious injury or threat to domestic industry from increased imports due to tariff concessions, identify the article concerned, submit findings to the Central Government, and recommend measures including suspending tariff reductions or raising customs duty up to the lesser of applicable MFN applied rates (with seasonal adjustments where relevant); recommended measures must be adequate to remove the injury and be subject to periodic review.