European Commission 13 December 2016, COMMISSION STAFF WORKING DOCUMENT IMPACT ASSESSMENT Initiative to partially revise Regulation (EC) No 883/2004 of the European Parliament and of the Council on the coordination of social security systems and its implementing Regulation (EC) No 987/2009 Accompanying the document Proposal for a regulation of the European Parliament and of the Council amending Regulation (EC) No 883/2004 on the coordination of social security systems and regulation (EC) No 987/2009 laying down the procedure for implementing Regulation (EC) No 883/2004 (Text with relevance for the EEA and Switzerland)

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