When transporting a gas container, what must be removed?

When transporting a gas container, the regulator must be removed to ensure safety. The regulator controls the pressure of the gas being released from the container, and if it remains attached during transport, it can pose a risk of accidental release or damage. By removing the regulator, you minimize the chances of leakage or unintended discharge of gas, which could lead to hazardous situations.

In contrast, while caps and valves serve important functions in gas containers, they are typically designed to remain in place to prevent contamination and uncontrolled gas escape during transport. Gauges, which indicate pressure levels, also remain attached to provide necessary information during the use of the gas. Therefore, removing the regulator is a critical safety measure to avoid potential accidents.