‘For the purpose of this Regulation:
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“frontier worker” means any employed or self-employed person who pursues his occupation in the territory of a Member State and resides in the territory of another Member State to which he returns as a rule daily or at least once a week; ...
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“competent institution” means:
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the institution with which the person concerned is insured at the time of the application for benefit
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“competent State” means the Member State in whose territory the competent institution is situated;
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