Define "mutual aid" in the context of firefighting.

Mutual aid in the context of firefighting refers to an agreement between neighboring fire departments to support each other during emergencies. This collaboration is crucial, especially during large-scale incidents or disasters that strain local resources and require additional personnel, equipment, and expertise. By having a mutual aid system in place, departments can quickly mobilize extra resources to effectively combat larger fires or respond to simultaneous emergencies, ensuring a more efficient and effective response. This practice enhances community safety and improves the overall capacity to handle critical situations.

The other choices do not fit the definition of mutual aid as they pertain to different aspects of firefighting; one focuses on regulatory permits, another on training programs, and a third on standardized procedures for firefighting tactics. None of these options capture the essence of cooperation and assistance that mutual aid embodies among fire departments.