If metallic piping is exposed above ground, is a bobtail driver allowed to fill the associated container?

When metallic piping is exposed above ground, it is crucial to ensure that it is adequately protected to prevent damage. The correct answer highlights that while a bobtail driver is allowed to fill the associated container, the piping must be supported and protected. This is important because exposed metallic piping can be susceptible to corrosion, physical damage, and environmental impacts that can affect the integrity of the piping and the safety of the liquefied petroleum gas (LPG) system.

Maintaining proper support and protection for the exposed piping aligns with safety protocols outlined in NFPA 58, which emphasizes that installations must mitigate risks to ensure safe operations. This approach helps maintain the overall safety of the LPG system during the filling process and reduces the likelihood of leaks or other hazardous situations.

Other options provided do not align with the need for safety measures concerning exposed piping. They either suggest more stringent restrictions than NFPA 58 mandates or imply a lack of requirements where safety should be prioritized. Therefore, the correct response addresses the balance of allowing the filling process while ensuring that safety and protective measures are employed.