Without prejudice to Article 3, Member States shall take the necessary steps to ensure that:

1. before workers with an employment relationship as, referred to in Article 1(2) are supplied, a user undertaking and/or establishment shall specify to the temporary employment business, inter alia, the occupational qualifications required and the specific features of the job to be filled;

2. the temporary employment business shall bring all these facts to the attention of the workers concerned.

Member States may provide that the details to be given by the user undertaking and/or establishment to the temporary employment business in accordance with point 1 of the first subparagraph shall appear in a contract of assignment.