The term of concerted practices is regulated by the provisions of § 66b of the Commercial Code. Acting in concert is acting of independent persons made in mutual understanding to acquire, assign or exercise voting rights on particular person for the purpose of enforcing a common influence on its management, running a business, occupation statutory or supervisory body or else influence the behaviour of such a person. Those who act in concert are obliged to fulfil the obligations arising therefrom jointly and severally.
Concerted practices must be active, it may not be concluded a special agreement and must follow the legally relevant target. Not every action is automatically acting in concert.