Employing Croatian Nationals
Croatia joined the European Union on 1 July 2013. As a result, Croatian nationals no longer require entry clearance or a visa to enter and reside legally in the UK up to a period of 3 months. This does not automatically permit Croatian nationals free right to work in the UK, however. Therefore, they still need to obtain authorisation to work before starting any employment, unless they claim exemption from doing so. Obtaining authorisation to work runs in two stages. Firstly, the Croatian national applies for a Certificate of Sponsorship. Secondly, the Croatian national must then apply for a Worker Authorisation Registration Certificate (also referred to as a Purple Registration Certificate).
Certificate of Sponsorship Applications
Croatian Nationals can apply for Certifcate of Sponsorhip (CoS) under Tier 2 (General) or Tier 5 (Temporary Worker). All the normal requirements still need to be fulfilled by the Croatian nationals who apply.
Merely issuing of a CoS does not authorise Croatian Nationals to work in the UK. In order to obtain authorisation, they should apply for a Worker Authorisation Registration Certificate (Purple Registration Certificate).