Article 1(1) defines discrimination to include "(a) any distinction, exclusion or preference made on the basis of race, colour, sex, religion, political opinion, national extraction or social origin, which has the effect of nullifying or impairing equality of opportunity or treatment in employment or occupation; (b) such other distinction, exclusion or preference which has the effect of nullifying or impairing equality of opportunity or treatment in employment or occupation as may be determined by the Member concerned after consultation with representative employers' and workers' organisations, where such exist, and with other appropriate bodies." Article 5 of the Convention lays down that special measures adopted to meet the specific requirements of individuals by reason of their "sex, age, disablement, family responsibilities or social or cultural status" shall not be deemed to be discrimination."