Nationals of the EU accession countries (other than Cyprus and Malta) are not working legally in the UK unless they are registered under the Worker Registration Scheme or are exempt from the requirement to do so. They are exempt if, for example, they have been working legally in the UK for 12 months or if they are working in a self-employed capacity, or are working for less than 30 days.
The latest published Accession Monitoring Report covers the period May 2004 to March 2006 and sets out the number of citizens from the EU Accession countries (A8 nationals) who have applied to register with the Worker Registration Scheme (WRS) during this period. This report is available on the Home Office website at:
http://www.ind.homeoffice.gov.uk/aboutus/reports/accession_monitoring_report