If you are looking at the "versions" of the throughout history, the community often groups them by their design evolution. CAL FIRE/San Diego County Fire - Facebook
This signifies a significant, dangerous incident, such as a large building fire or a hazardous materials situation. It triples the initial response , often involving multiple ladder trucks, media relations crews, and support units to sustain firefighters during long operations. 2. Wildland Firefighting Crew Types Fire Department (version 1 & 2 & 3)
In wildland firefighting (like forest fires), crews are strictly typed by their skill levels and capabilities. If you are looking at the "versions" of
These are highly skilled, elite "Interagency Hotshot Crews" (IHC). They meet the most arduous physical standards and handle the most complex, high-priority parts of a fire. They meet the most arduous physical standards and
The standard initial response. This typically involves a set amount of resources—usually a few engines, a ladder truck, and a commanding officer—to handle a standard residential or small commercial fire.
The most common way people distinguish "versions" of fire department activity is by the assigned to an emergency. This dictates how many resources and personnel are sent to the scene.
If the first responders find the situation more serious, they call for a second alarm. This effectively doubles the resources on-site, bringing in more firefighters and specialized equipment.