Legal Definition of Scope of authority:  The powers of an agent given to him by the principal, including not only the authority specifically designated but implied or inferred authority, too. In such instances in which there is doubt, the agent may claim that the scope of his authority to act for and in his principal’s behalf is greater than that which is written down and recorded | Discover the Importance of Understanding Scope of Authority for Business Owners – Avoid Legal Issues and Protect Your Company – Learn More!