A work permit is the permission given to an employer to employ a worker from outside the EEA who needs permission to work in the UK. The work permit is issued to the employer and gives them permission to employ a specific worker in a specific job. The worker then takes details of the work permit when they apply for entry clearance.
Work Permits UK
The part of the Immigration and Nationality Directorate that issues work permits.
Worker Registration Scheme
Nationals of the A8 and A2 states must register to work in the UK. There are two different worker registration schemes, one for the A8 and one for the A2 (Bulgaria and Romania).