Social security
Article 11
1. Before the period of secondment begins, the employer shall certify to the GSC that, throughout the period of secondment, the expert will remain subject to the social security legislation applicable to the Member State public administration or the IGO, which employs the expert. To this end, the Member State public administration shall supply the GSC with the attestation referred to in Article 19(2) of Regulation (EC) No 987/2009 of the European Parliament and of the Council ( 3 ) (‘Portable document A1’). The IGO shall supply the GSC with a certificate equivalent to the Portable document A1 and it shall prove that the social security legislation applicable provides for the defrayal of healthcare cost incurred abroad. 2. From the commencement of their secondment, the expert shall be covered by the GSC against the risk of accident. The GSC shall provide the expert with a copy of the terms of this cover on the day on which the expert reports to the relevant department of the Directorate-General for Administration to complete the administrative formalities related to the secondment. 3. When, in the context of a mission in which the expert is participating under the terms of Articles 7(3) and 29, additional or specific insurance is required, the relevant costs shall be borne by the GSC.