4U.K.The exemption provided for in paragraphs 1 and 2 of this Article shall not preclude voluntary participation in the social security system of the receiving State, provided that such participation is permitted by that State.
4U.K.The exemption provided for in paragraphs 1 and 2 of this Article shall not preclude voluntary participation in the social security system of the receiving State, provided that such participation is permitted by that State.