DUO – Inburgeraars/Homepage 2010.
Inburgeren is part of the integration required of all newcomers to the Netherlands. It is not a requirement for EU citizens, because of the rules governing the free movement of people, but for people from other countries, it is compulsory.
Integration courses are, however, very helpful, if not compulsory, for the EU citizen, as they involve basic language tuition, and some basic information on Dutch culture. KNS – the knowledge of Dutch society – is a fundamental part of these courses. Knowing more about the people with whom you live and/or work seems (at least to me) to be invaluable.