Requirements for a permit depend on the length of time that the generator is operating on the project site:

No permit from Building or Fire is required, however, you must comply with regulations:

• Do not use power from buildings. If power is used from buildings, you must apply for an electrical permit from the Building Division and plan review will be required.
• Comply with air quality standards - Visit the Bay Area Air District.
• Comply with noise standards - The sound pressure level generated by any use or combination of uses on a property must not exceed the following decibel levels:
  • Property line abuts a residential use: 55 Decibels
  • Property line abuts a non-residential use: 60 Decibels

Generator Onsite 31 to 180 Days

A temporary permit is required. Submit a Business Occupancy Classification Inventory Form to the Fire Department. After installation:

• If 55 gallons or less is stored onsite, submit a Hazardous Materials Registration Form.
• If more than 55 gallons is stored onsite, submit a Hazardous Materials Business Plan (HMBP). You will need to identify: ƒ
  • Systems that are connected to the generator
  • Systems that are emergency (life supporting) or standby
  • Minimum required duration
  • Low fuel setting calculations to verify the minimum durations required in Chapter 12 CFC. 

Generator Onsite More Than 180 Days

The system will be considered as a permanent standby generator installation and permits must be obtained accordingly — see Generators.

Questions?

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