What is the first critical action to take in response to a fuel spill?

The first critical action to take in response to a fuel spill is to shut off the source of the spill. This step is vital because stopping the flow of fuel prevents further contamination and minimizes the potential hazard posed by the spill. If the source remains active, the situation can escalate, leading to larger spills and increased safety risks.

Effectively managing a fuel spill begins with control measures, which involves addressing the source first. This is essential not only to protect the environment but also to ensure the safety of individuals in the vicinity. After securing the spill's source, further actions, such as notifying relevant authorities and initiating cleanup procedures, can appropriately follow.