California waste code 322 Biological waste from any source but sewage.

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Based on California Title 22 and DTSC guidance
Nothing is stored

Organics
Other hazardous biological waste

A biological source produced the waste, but it is not sewage sludge.

Hazardous biological waste that is not sewage sludge. The biological material or process and the hazard behind it are recorded.

Is California code 322 hazardous waste?

Not from the code alone. Waste must first be found hazardous. Code 322 isn't a restricted code, but a restricted category that fits takes priority over it. A code that isn't restricted doesn't make waste non-hazardous.

When a shipment needs the Uniform Hazardous Waste Manifest, enter 322 in Item 13 for the waste line. Use one California code, plus the federal RCRA codes when the waste is federally hazardous.

RCRA waste meets a federal listing or characteristic, with no federal exclusion that 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 322 cover?

This code is for hazardous waste made by a biological material or process that isn't sewage sludge. Biological origin doesn't prove it hazardous, and medical-waste classification can put the material under separate rules.

Official wording: 22 CCR division 4.5, chapter 11, Appendix XII(b)

Is biological waste California code 322 or 321?

Code	When it fits
322	A biological material or process produced hazardous waste that is not sewage sludge.
321	Sewage treatment produced the hazardous sludge.
No California hazardous waste code	The biological material has no hazardous listing or characteristic.

Record the material or process, and the separate reason it is hazardous. Medical-waste rules can apply without making the material code 322.

Which wastes take California code 322?

Waste	When it’s 322
Biological waste other than sewage sludge	Biological culture or process biomass is discarded outside the sewage-sludge stream

Which codes sit beside California code 322?

Code	What it is
272	Polymeric resin waste
281	Discarded adhesive
291	Discarded latex material
311	Discarded pharmaceuticals
331	Unused organic material
341	Halogenated non-solvent organic liquid
342	Organic liquid with listed metals
343	Other organic liquid mixture