(1) In this Act, unless the contrary intention appears:
"Customs undertaking" means an undertaking given under subsection 267(1) or 268(2) of the Customs Act 1901 , and includes such an undertaking as varied.
"item of a Customs Tariff" and proposed item of a Customs Tariff have the same respective meanings as in Part XVI of the Customs Act 1901 .
"prescribed percentage" , in relation to goods, means the prescribed percentage set out in the Customs undertaking that relates to the goods.
(2) For the purposes of this Act, where a Customs undertaking sets out the value of a unit of the goods to which the undertaking relates, the value of the goods shall be calculated in accordance with that value.