What is the most commonly used color fire line tape for marking the cold zone?

The most commonly used color for fire line tape to mark the cold zone is yellow. This color is widely recognized in incident management as it helps to delineate areas that are safe for personnel and equipment, as opposed to the hot zone, where immediate danger exists. The use of yellow tape provides clear visual cues that can be easily seen by firefighters and other emergency personnel, ensuring that everyone on the scene is aware of the boundaries of the cold zone. This helps to maintain safety and order during an incident response, facilitating better management and organization of resources. Other colors, such as red or green, signify different zones or purposes, but yellow is the standard for indicating areas that are restricted or are less hazardous.