49The matter relating to the posting of workers who are nationals of non-Member States in the framework of the cross-border provision of services has so far not been harmonised at European Union level. That being so, it must be examined whether the restrictions on the freedom to provide services arising from the legislation at issue in the main proceedings appear to be justified by an objective in the public interest and, if so, whether they are necessary in order to pursue, effectively and by appropriate means, that objective (see judgment in Commission v Austria, EU:C:2006:595, paragraph 44 and the case-law cited).
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