PG&E has achieved the following results from n Validated safe operating pressure by strength-testing more than 835 miles of gas pipeline, n Replaced more than 175 miles of gas transmission pipeline, n Automated nearly 270 valves, enabling remote-control shutoff of gas in an emergency, and n Retrofitted more than 665 miles of gas transmission lines to accommodate in-line inspection tools, or “smart pigs,” which are used to inspect the condition of pipelines using sophisticated technology.