(b) in any other case, each Member State shall, as from the same date, apply a duty reducing by 30% the difference between the duty applied in practice on I January 1957 and the duty in the Common Customs Tariff;
(b) in aon chás eile déanfaidh gach Ballstát, ón data céanna, dleacht a chur chun feidhme a laghdóidh 30 % an difríocht idir an dleacht a bhí i bhfeidhm iarbhir ar an 1 Eanáir 1957 agus an dleacht sa Chomhtharaif Chustaim;