What should you do immediately when transporting a filled gas container?

When transporting a filled gas container, it is crucial to securely cap the container to prevent any accidental release of gas. A securely capped container helps ensure that there are no leaks during transit, which could pose significant safety risks. This practice is essential for maintaining safety standards and protecting both the individuals involved in the transportation and the surrounding environment.

Opening the valve slightly could lead to gas escaping unintentionally, increasing the risk of hazardous situations. A loosely connected regulator may not provide a proper seal, which can also lead to leaks. Tilting the container could cause it to become unstable or damage the valve, further increasing the risk of gas release. Therefore, securely capping the container is the correct and safest procedure when transporting filled gas containers.