What principle defines the concept of a single supervisor for each subordinate?

• A. Span of control
• B. Unity of command
• C. Delegation of authority
• D. Centralization

Answer: (B)

The principle that defines the concept of a single supervisor for each subordinate is unity of command. This principle is critical in organizational structures, particularly within emergency services and fire departments, as it ensures that each individual under supervision reports to only one person. This clear line of authority helps to eliminate confusion about who is in charge and who is giving directions, thus facilitating more effective communication and operational efficiency during incidents.

By adhering to the unity of command principle, organizations can better manage responsibilities and accountability. When personnel understand who they report to, it minimizes the risk of conflicting orders and enhances decision-making. This principle is essential for maintaining order and a structured hierarchy within teams, particularly in high-stress situations like firefighting.

In contrast, while span of control refers to the number of subordinates that a supervisor is responsible for, it does not specifically address the necessity of having a single supervisor. Delegation of authority involves the distribution of responsibilities and powers, and centralization focuses on the concentration of decision-making authority at the upper levels of management. These concepts support the overall structure and function of an organization but do not define the singular supervisory relationship that unity of command emphasizes.