When it comes to posted workers or if the person is working in several countries at the same time, then the person firstly has to submit an application to the Social Security Office to receive the form under the A1 certificate and after that has to make an application to the health insurance fund to receive the form E106/S1. The health insurance fund proceeds from the information mentioned in the form A1 when issuing the form E106/S1.
Once all the necessary information (the duration of the dispatch is not longer than 6 months) is available, the health insurance fund can issue the form E106/S1, which gives the person the right to register him-/herself in the dispatched country´s health insurance institution. The form E106/S1 is sent to the employer unless it is agreed otherwise.
Moreover, addition to the posted worker, the frontier worker and person raising a child under 3 years whose employment contract has been suspended, can request the form E106/S1. They also have to submit an application to the health insurance fund.