How should a main gas shutoff valve that controls several gas piping systems be identified?

A main gas shutoff valve that controls several gas piping systems must be readily identified to ensure that it can be found quickly in case of an emergency or maintenance situation. This is crucial for safety, as immediate access to the shutoff valve can help prevent accidents, such as gas leaks, fires, or explosions. The identification should be clear and easily understood by anyone who may need to operate it, including emergency response personnel, technicians, and facility maintenance staff.

While marking the valve with caution tape, placing it in a locked box, or locating it in a visible area might seem helpful, these options do not specifically address the need for clarity in identification. The main focus is on ensuring that anyone who needs to turn off the gas supply can locate and operate the valve without confusion, making the requirement for it to be readily identified paramount over other considerations.