Home Mainline Posted June 24, 2007 Mainline Share URL Copied to Clipboard https://ingaa.org/glossary/mainline/ « Back to Glossary IndexSee PIPELINE SYSTEM, TRANSMISSION LINE. Related Articles: Glossary: Transmission CompanyBlanket Certificates INGAA Comments 8-25-06Infrastructure NGSA INGAA Petition for Rulemaking 11-22-05Santa Letter to Kelliher Regarding Waivers of the Blanket Certificate RegulationsBlanket Certificate Waiver 122011« Back to Glossary Index Related Fact Sheets Safety Pivoting to Support a Net-Zero Future – IMCI Program February 21, 2023
