During size-up, which items are included?

• A. Identifying hazards, determining conditions, establishing strategy, and identifying resources
• B. Recording building tax information
• C. Measuring the area for aesthetic purposes
• D. Estimating the value of contents

Answer: (A)

Size-up is the ongoing rapid assessment of a fire scene to understand hazards, the conditions on site, and what actions are needed. The items included are identifying hazards, determining conditions, establishing strategy, and identifying resources. Identifying hazards means spotting dangers like potential backdrafts, collapsing structure, hidden fires, or gas leaks. Determining conditions covers what the scene is showing—where the fire is, the amount and color of smoke, heat, visibility, occupancy type, and structural integrity. Establishing strategy involves deciding the overall approach and actions, such as whether to attack from the exterior, enter, search, or ventilate, and how to coordinate with crews. Identifying resources means figuring out what personnel and equipment are already on scene and what additional support or tools are needed, like water supply, additional crews, or specialized gear. These elements together guide the incident action plan and safety decisions. The other options do not fit size-up: recording building tax information is unrelated to incident operations, measuring the area for aesthetic purposes has no bearing on firefighting tactics, and estimating the value of contents is not part of the immediate scene assessment and safety planning.