There are two types of work-study contract. The apprenticeship contract, as part of work-study training, is reserved for students under the age of 30, regardless of their level of education. As part of the course of these work-study studies, completing an apprenticeship is compulsory to obtain a diploma. The professionalization contract is open to job seekers regardless of their age and aims to facilitate their professional integration. For these two work-study contract offers, it is a fixed-term contract, which can lead to a permanent contract at the end of the professional training. The duration of the contract depends on the duration of the vocational training.