As an AEIC member company, Pacific Gas and Electric Company (PG&E) achieved a historic milestone with Line 400—a 300-mile natural gas pipeline journeyed by a specialized pipeline inspection gauge, or, “pig.”
This innovative inspection ensures safety and reliability for over 5 million customers. Learn more about this remarkable project and the advanced technology behind it.
Originally published on aeic.org on April 30, 2024 and republished here as written when the site moved in July 2026. Back to the archive →