South Coast AQMD Rule 222 filing (chain-driven charbroilers; small boilers): Los Angeles restaurant guide
South Coast AQMD
What it is
Instead of a full air permit, certain small equipment must be registered ("filed") with the air district under Rule 222. Chain-driven charbroilers are covered by Rule 1138 and must use a certified catalytic oxidizer; boilers and process heaters below the permit threshold also file under Rule 222.
When a restaurant needs it
Using a chain-driven (conveyor) charbroiler, or installing a boiler/water heater covered by Rule 222.
How to apply
File online through the Rule 222 program (about 20 minutes) or mail the PDF form with payment; keep maintenance records five years.
Documents you’ll need
- Equipment make/model and ratings
- Catalytic oxidizer certification (charbroilers)
- Facility address and contact
- Filing fee
Good to know
Rule 1138 exempts chain-driven charbroilers cooking less than 400 lb of meat a week (temporarily less than 875 lb/week until Sept 6, 2026). Under-fired charbroilers are not yet regulated but "may be subject to future rule provisions."
Official source
South Coast AQMD — Rule 222 filing program · South Coast AQMD — Rule 1138 (charbroilers, amended Sept 5, 2025)
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Last reviewed 2026-10-06. Guidance only, not legal advice.