Which rank is one rank below Captain?

The rank that is one rank below Captain is Lieutenant. In most fire service organizations, the rank structure is hierarchical, and typically, the progression goes from Firefighter to Lieutenant, then to Captain. A Lieutenant usually holds a leadership position, assisting the Captain in managing a team of firefighters and overseeing operations during incidents.

Understanding this rank order is crucial as it establishes the chain of command, ensures effective communication, and delineates responsibilities within the organization. Other mentioned roles such as Driver Operator, EMS Captain, and Firefighter might play significant roles within fire service operations but do not directly follow the hierarchy that places Lieutenant directly below Captain.