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Aboveground Storage Tanks (AST)

Combustible and Flammable Liquid Storage Tanks Regulations and Permits

above ground storage tankabove ground storage tank

For questions about the new 2013 regulations for Above Ground Storage Tanks, please contact Commercial Plan Check and Permitting.


All Above Ground Storage Tanks (AST) must be installed with a building permit regardless of size to Sonoma County Fire if the location is in the un-incorporated are of Sonoma County.

The building department will also be interested in the electrical connections to verify compliance of the building code and electrical code.

Tanks installed for agricultural (Ag) use will not be exempt from permitting requirements.

AST’s will be regulated by the CUPA Authority for yearly inspections

AST’s that will be used for Ag use will be regulated by the Ag commission for yearly inspection.

Minimum Requirements Based on Scope of Use:

Authority Cited:

Chapter 22 of the California Fire Code
California Plumbing Code
California Building Code
California Electrical Code
NFPA 30 Flammable Liquids
NFPA 30a Dispensing Facilities
NFPA 407 for Aircraft

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