Performance of an authorized act in an unauthorized manner is called:

The correct answer is misfeasance, which refers to the improper performance of an act that a person is authorized to perform. In this context, misfeasance occurs when an individual executes a task or duty in a way that is negligent, careless, or not in accordance with established standards, even though they have the legal authority to undertake that action.

This concept is crucial in the realm of environmental health and sanitation, where professionals are expected to perform various tasks to ensure safety and compliance with health regulations. A specific instance of misfeasance could involve an environmental health specialist who conducts an inspection but fails to follow proper protocols, resulting in an inaccurate assessment that could affect public health.

Understanding misfeasance is vital for professionals to recognize their responsibilities and the importance of adhering to guidelines and standards when carrying out their authorized duties. This distinction helps in identifying where lapses may occur in practice, ultimately guiding better compliance and enforcement to protect environmental and public health.