; (8) the term severity incident means an incident in which a covered employee is pre-positioned in an area where conditions indicate there is a high risk of wildfires; (9) the term wildfire incident — (A) means a wildland fire originating from an unplanned ignition, such as lightning, volcanos, or a human-caused fire; and (B) includes a prescribed fire that is declared to be a wildfire; and (10) the term wildland firefighter means a firefighter— (A) who is employed by the Forest Service or the Department of the Interior