Which unit is normally responsible for hooking up to a sprinkler/standpipe connection upon arrival?

The first arriving engine is typically responsible for hooking up to a sprinkler or standpipe connection upon arrival at the scene of a fire. This unit plays a critical role in establishing an immediate water supply to combat the fire effectively. The primary duty of the first arriving engine is to ensure that firefighting efforts begin promptly, which includes connecting to existing water sources such as sprinkler systems or standpipe systems.

The second arriving engine usually supports the first engine in various ways, such as providing additional manpower, supplying more hose lines, or backing up operations already established. Therefore, while multiple units play significant roles in an operation, the first arriving engine's responsibility is to initiate the water supply process.

In contrast, the last arriving unit and rescue units typically focus on other specific tasks that may involve victim rescue operations or additional fire suppression strategies, rather than connecting to sprinkler or standpipe systems. Understanding these roles is crucial for effective firefighting and operational efficiency at the incident scene.