Safeguard measure review requires injury assessment, industry adjustment, possible continuation, withdrawal, liberalisation, and tariff-rate quota modification. The Director General must periodically review whether continued imposition of a safeguard measure remains necessary to prevent or remedy serious injury and whether the affected industry is adjusting. Recommendations may be made for continuation where justified, or withdrawal where justification is absent. Measures imposed for more than three years require a mid-term review, which may lead to recommendations for withdrawal or increased liberalisation. The Director General may also review tariff rate quota usage and implementation for modification. Reviews must ordinarily be completed within eight months, subject to extension allowed by the Central Government, and specified procedural provisions apply with necessary modifications.