Workshop on SF6 Gas Insulated Switchgear Regulation

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Public Workshop to Discuss Possible Amendments to the Sulfur Hexafluoride (SF6) Gas Insulated Switchgear Regulation

The California Air Resources Board (CARB or Board) has scheduled a public workshop to discuss possible amendments to the Regulation for Reducing Sulfur Hexafluoride (SF6) Emissions from Gas Insulated Switchgear (Regulation).  

DATE:                Monday, February 25, 2019
TIME:                10:00 a.m. to 1:00 p.m. Pacific time
LOCATION:       CalEPA Headquarters Building
                          Coastal Hearing Room
                          1001 I Street Sacramento, California 95814

Purpose of the Workshop

CARB staff is proposing to amend the Regulation to further reduce greenhouse gas emissions from gas-insulated equipment in the electricity transmission and distribution sector.  This workshop is intended to provide information and solicit feedback on potential amendments to the Regulation.  Staff will provide updates on the potential regulatory changes, process, and tentative schedule. 

Following the workshop, stakeholders will have an opportunity to provide written comments during an informal comment period, which will conclude at 5:00 p.m. Pacific time on Monday, March 11, 2019.

All interested stakeholders are invited to attend.  For those unable to attend in person, the workshop will be webcast.

Materials that will be discussed at the workshop will be available on CARB’s Electricity Transmission and Distribution Greenhouse Gas Emissions “Meetings and Workshops” webpage prior to the workshop.

Workshop Information


As part of compliance with the Global Warming Solutions Act of 2006 (Assembly Bill 32), the Board adopted the Regulation in 2010.  The Regulation requires gas-insulated switchgear owners to lower their SF6 emission rate to one percent by 2020.  SF6 is the most potent of the six main greenhouse gases with a global warming potential over 20,000 times that of CO2 over 100 years.  It also has an extremely long atmospheric lifetime of about 3,200 years.

More Information