California waste code 133 Watery waste that is 10% or more oily or organic residue.

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Based on California Title 22 and DTSC guidance
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Inorganics
High-organic water-based liquid

Total organic residue is 10% or more.

Water-based liquid with total organic residue of 10% or more. Exactly 10% is included here, and below it the liquid takes code 134.

Is California code 133 hazardous waste?

Not from the code alone. The material must first be determined hazardous. California code 133 is not restricted, and a restricted code takes priority over it. A non-restricted code doesn't make a waste non-hazardous.

If the shipment needs the Uniform Hazardous Waste Manifest, enter 133 in Item 13 for the waste line. Use one California code, plus any federal RCRA codes when the waste is federally hazardous.

Waste is RCRA waste when it meets a federal listing or characteristic and no federal exclusion applies. Non-RCRA waste is hazardous under California rules only. California presumes hazardous waste is RCRA unless the generator shows it isn't, so keep that determination.

What does California code 133 cover?

This is for hazardous aqueous solution whose total organic residue is at least 10%. That percentage splits the paired high- and low-organic water-based codes.

Threshold: 10% or more total organic residue
Rule: Appendix XII(b)
Official wording: 22 CCR division 4.5, chapter 11, Appendix XII(b)

Is a high-organic water-based liquid California code 133?

Code	When it fits
133	Measured total organic residue is 10% or more.
134	Measured total organic residue is below 10%.

A result of exactly 10% is 133. Code 134 starts below it.

Which wastes take California code 133?

Waste	When it’s 133
Waste antifreeze	A hazardous water-based solution with 10% or more total organic residue.

Which codes sit beside California code 133?

Code	What it is
121	Alkaline liquid with listed metals
122	Alkaline liquid without listed metals
123	Other alkaline liquid
131	Reactive-anion water-based liquid
132	Metal-bearing water-based liquid
135	Other water-based hazardous liquid
141	Unused inorganic material
151	Friable or powdered asbestos