What does the term "point of delivery" refer to in gas piping systems?

The term "point of delivery" in gas piping systems specifically refers to the point where gas leaves the utility's distribution system. This is a critical point in the gas supply chain, as it marks the transition from the utility's responsibility for the gas supply to the consumer's responsibility for the gas that is delivered to their premises.

This location is usually found at or near the gas meter, but the defining characteristic is that it is the junction where the utility's control ends and the consumer's pipeline begins. Understanding the concept of the point of delivery is important for plumbing professionals, as it has implications for installing piping systems and ensuring that they meet safety and regulatory standards. It is also crucial for determining the point at which the utility's liability for the gas supply ceases and the homeowner or business becomes responsible for the gas.

The other options do not accurately describe the point of delivery in the context of gas piping systems. The first option discusses the selling of gas, the third option refers to the connection of appliances, and the last option focuses on billing, none of which align with the technical definition of where gas exits the utility’s distribution system.