Safeguard duty on solar cells imposed with phased rate reductions across the prescribed safeguard period. Imposition of Safeguard Duty on imports of solar cells under heading 8541 of the Customs Tariff Act is directed by section 8B and the Safeguard Rules, following the Directorate General of Trade Remedies' final recommendation; the duty applies as phased ad valorem rates during the safeguard period, reduced by any anti-dumping duty payable, and excludes imports from notified developing countries except specified exceptions.