Which is a requirement for purging piping systems with an operating gas pressure over 2PSIG?

The requirement for purging piping systems with an operating gas pressure over 2 PSIG is that it must comply with specific section requirements. This is crucial because purging involves removing air or other gases from a pipeline system to prevent unwanted reactions or potential hazards when introducing fuel gas into the system.

Adhering to established requirements ensures that safety protocols are followed, which helps minimize risks associated with purging, such as gas leaks or ignition of flammable materials. These specific requirements typically encompass guidelines for monitoring gas levels, ensuring proper ventilation, and employing safety measures that protect both personnel and property during the procedure.

While other options discuss various aspects of the purging process, they do not align with the necessary compliance aspect that is fundamental to safely performing a purging operation in high-pressure systems.