Which color tape is used to mark the warm zone in fire line markings?

• A. Blue
• B. Red
• C. Orange
• D. Yellow

Answer: (C)

The idea behind fire line markings is to quickly distinguish where different levels of danger and activity are happening. The warm zone sits between the hot zone (the immediate area around the fire) and the cold zone (the safer outer area). It’s where support activities occur, like equipment staging, decontamination, and supervision, so responders can move backing resources without entering the hottest area.

Orange is used to mark the warm zone because it provides a sharp, high-visibility cue that stands out from both red (the hot zone) and yellow (the cold/outer area). In smoky conditions or low light, orange is easy to see and clearly signals a transition area that requires caution but isn’t the extreme danger of the hot zone. The other colors either denote different zones or aren’t as distinct for this specific purpose.