Outsourcing a service is not prohibited, but managing the provider's employees is

Externaliser un service n’est pas interdit, diriger les salariés du prestataire l’est

A wave of legal complaints has been filed against several major French cultural institutions, including the Louvre, the Pinault Collection, and the MuCEM, alleging illegal labor practices. Labor unions Sud-Culture, SUD-PTT, and Solidaires claim these museums are engaging in "illicit lending of labor" and "bargaining" by exercising direct authority over outsourced staff from third-party agencies like Marianne International and Pénélope. While outsourcing services like ticketing and reception is legal in France, the lawsuits argue that museums are illegally managing these external employees' daily schedules, rotations, and disciplinary actions as if they were their own staff.