Substitutionary Doctrine Law and Legal Definition

Substitutionary doctrine refers to a principle in labor law which states that even during the existence of a collective bargaining agreement executed between the employer and the employees through their agent, the employees can change the said agent but the contract continues to bind them up into its expiration date. According to the doctrine, the employees cannot revoke the validly executed collective bargaining contract with their employer by the simple expedient of changing their bargaining agent. In the event, the new agent must respect the earlier contract.