Regulation (EC) No 883/2004 of the European Parliament and of the Council of 29 April 2004 on the coordination of social security systems (OJ L 166, 30.4.2004, p. 1).
Rialachán (CE) Uimh. 883/2004 ó Pharlaimint na hEorpa agus ón gComhairle an 29 Aibreán 2004 maidir le comhordú córas slándála sóisialta (IO L 166, 30.4.2004, lch. 1).