Can copper be used indoors for natural gas piping in VGS territory?

Copper cannot be used indoors for natural gas piping in Vermont Gas Systems (VGS) territory due to safety and regulatory concerns. The properties of copper can lead to issues such as corrosion when in contact with natural gas and certain conditions present in the environment. The use of materials that are specifically approved for natural gas applications is critical to ensure safety and reliability in gas distribution systems.

Other options suggest different scenarios, like limited use in specific situations or with permits; however, current regulations clearly stipulate that copper is not an acceptable material for indoor gas piping. This helps ensure that the integrity of the gas delivery system is maintained and that the safety of residents and buildings is prioritized. Therefore, the appropriate response aligns with VGS regulations.