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sf6nonelec -- Sulfur hexafluoride regulations and associated requirements

Posted: 18 Jun 2013 17:44:47
Sulfur hexafluoride, SF6, is the most potent greenhouse gas among
the fluorinated gases.  In implementing the California Global
Warming Solutions Act of 2006 (AB 32), the Air Resources Board
(ARB) has adopted three measures regulating the use of sulfur
hexafluoride in California.   These three separate measures
regulate use of SF6 in three separate areas: 

•	Semiconductor Applications
•	Electric Utility Applications (Gas Insulated Switchgear)
•	Non-Electricity and Non-Semiconductor Applications

The current notice is being sent as a reminder to SF6 users in
non-electricity and non-semiconductor applications that use,
possession, and sale of sulfur hexafluoride (SF6) in the State of
California, are with very few exceptions prohibited under
“Regulation for Reducing Sulfur Hexafluoride Emissions”, sections
95340 to 95346, title 17, California Code of Regulations, as
approved by the California Air Resources Board in February 2009.
Examples of prohibited uses include but are not limited to:
underground storage tank and distribution system leak testing,
most laboratory fume hood testing, airborne tracer testing, and
as a cover gas during magnesium casting.  

Section 95341(a) of the regulation explicitly identifies a
specific list of uses as exempt from the prohibition. Section
95341(b) of the regulation allows some uses to be granted
temporary or permanent exemption from the prohibition through
promulgation of an Executive Order by the ARB.  To receive an
exemption through Executive Order, users must submit an
application demonstrating grounds for the exemption that are
consistent with the grounds identified in the regulation. 

If you are using SF6 for any prohibited purpose without a valid
exemption from the California Air Resources Board, you are in
violation of this regulation and subject to enforcement actions,
penalties and fines as provided under “Enforcement”, section
95344 title 17, California Code of Regulations.

If you are purchasing or using SF6 in California, then section
95345 of the regulation describes record keeping and reporting
requirements based on your particular use.  If you are
distributing SF6, then distributors located outside of California
must report all sales to entities within the state, and
distributors based in California are required to report all sales
of SF6 within and outside of California.  These sales include,
but are not limited to, businesses in the semiconductor industry,
the electricity sector, and exempt applications.

For further information, please visit:

The regulatory language is included on this website under the
“Past Events” heading. 

If you have any questions, please contact Winston Potts, Air
Resources Engineer, at wpotts@arb.ca.gov or Ariel Fideldy, Air
Resources Technician at afideldy@arb.ca.gov.

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