Who must participate in a job briefing?

The correct answer reflects the principle that effective communication and collaboration are crucial in ensuring safety and efficiency in operations. Employees whose duties require coordination with others must participate in a job briefing to ensure that everyone involved in a task is on the same page regarding the objectives, procedures, and safety concerns. This coordination minimizes the risk of miscommunication and errors during operations, fostering a culture of safety and teamwork.

In contrast, the other options suggest that only specific individuals or groups participate in the briefing, which could lead to gaps in information or oversight. For instance, limiting participation to only supervisors or crew members may exclude essential contributors or support staff who play a critical role in the operation. By ensuring that anyone present at the scene is involved in the briefing, it enhances awareness and preparedness for any situation that may arise.