Most Residential, no longer in CBC. Use CRC.
In the CRC reference standards lists ANSI Z21.1-D3 Household Cooking Gas Appliances-with Addenda Z21.1 a-2003 and Z21.1 b-2003
ANSI Z21.1-D3 Allows for both vented and unvented gas appliances
The answer is maybe
Refer to the manufactures installation listing and instructions
Now if the stupid people in Sacramento didn’t delete whole sections in the code I would also say “maybe”
IRC RANGE HOODS Not in CA
M1503.1 General. Range hoods shall discharge to the outdoors through a single-wall duct. The duct serving the hood shall have a smooth interior surface, shall be air tight and shall be equipped with a backdraft damper. Ducts serving range hoods shall not terminate in an attic or crawl space or areas
inside the building.
Exception: Where installed in accordance with the manufacturer’s installation instructions, and where mechanical or natural ventilation is otherwise provided, listed and labeled ductless range hoods shall not be required to discharge to the outdoors.