California waste code 252 Distillation residue with no halogenated organics.

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Based on California Title 22 and DTSC guidance
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Organics
Other still-bottom waste

Hazardous distillation residue without halogenated organics.

Hazardous still bottoms without halogenated organics. Residue that contains them takes code 251.

Is California code 252 hazardous waste?

Not from the code alone. Waste must first be found hazardous. Code 252 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 252 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 252 cover?

This code is for hazardous residue left at the bottom of a still after distillation, when no halogenated organic compounds are present. It is the still-bottom code for non-halogenated residue, not a general sludge code.

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

Is still-bottom residue California code 252 or 251?

Code	When it fits
252	Distillation generated the hazardous residue and no halogenated organic compounds are present.
251	Distillation generated the residue and halogenated organic compounds are present.

Distillation tells you the waste type. Whether halogenated organics are present decides the code.

Which wastes take California code 252?

Waste	When it’s 252
Halogenated still bottoms	Distillation residue has no halogenated organic content

Which codes sit beside California code 252?

Code	What it is
223	Other oily hazardous waste
231	Pesticide rinse water
232	Pesticide and pesticide-production waste
241	Tank-bottom waste
261	PCB-containing material
271	Unreacted resin and monomers
272	Polymeric resin waste
281	Discarded adhesive