Duty free import of ballistic aramid yarn permitted subject to manufacturer use, concessional import rules, and undertaking. A new tariff entry permits concessional import of Ballistic grade aramid yarn where a manufacturer imports it solely for manufacturing ballistic aramid fabric, complies with the Customs concessional import rules for manufacture of excisable goods, and furnishes an undertaking at importation that such fabric will be supplied only to a manufacturer of bullet proof jackets for supply to the armed forces or specified police forces.