41To that end, Directive 2008/104 provides only for the introduction of minimum requirements, as is apparent from its legal basis, recalled in paragraph 39 of this judgment and Article 9 of the directive. Those minimum requirements seek (i) to ensure observance of the principle of equal treatment of temporary agency workers, established in Article 5 of that directive, and (ii) to review the prohibitions and restrictions applying to temporary agency work laid down by Member States so that only those which are justified on public interest grounds and which relate to the protection of workers, as provided for in Article 4 of the directive, are retained.
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