What category does "natural" belong to in classifications of fire cause?

In the context of fire cause classifications, "natural" is categorized as accidental. Natural fires are typically caused by environmental factors that are not the result of human actions, such as lightning strikes or spontaneous combustion. These types of fires occur without any intent to cause harm or destruction, distinguishing them from incendiary fires, which are deliberately set.

The classification as accidental is important for fire investigations, as it helps to differentiate between fires that are a result of human negligence and those that occur purely due to natural circumstances. Understanding this categorization assists investigators in determining the origin and cause of a fire, which is critical for analysis, reporting, and potentially preventing future incidents.