U220 RCRA waste code Toxic paint thinner & fuel additive solvent.

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Based on 40 CFR 261.33 and EPA guidance
Nothing is stored

U-listed waste
Toluene

U-list unused product.

Toxic U-listed hazardous waste for unused toluene, a solvent used in paint thinners, glues & fuel.

Is U220 hazardous waste?

Yes, when the listing applies. U220 is a U-listed hazardous waste for unused toluene that is thrown away, including off-specification product and qualifying residues. It is nonacute, not an acute P-listed waste. The listing depends on the product and how it is discarded, not on a TCLP result alone.

On a required hazardous waste manifest, put U220 in Item 13. Also read VSQG exemptions and empty-container rules and pharmaceutical containers.

What does U220 cover?

This listing covers unused toluene thrown away as pure or technical grade, or in a product where it is the only active ingredient. That includes off-specification batches, residues left in nonempty containers and spill cleanup residues. Inactive ingredients don't change that.

CAS: 108-88-3
Table entries: Benzene, methyl- / Toluene
Hazard codes in the record: T (toxic)
Rule: 40 CFR 261.33(f)

Is toluene waste always U220?

Code	When it fits
U220	The unused chemical is discarded as pure or technical grade, or as the sole active ingredient. Qualifying product residues count too.
F005	It is spent after solvent use, or is a still bottom from recovery. The F005 blend conditions apply too.
Characteristic waste (D001–D043)	A used chemical or a different formulation meets a hazardous-waste characteristic. Assess any process listings that apply too.

A listed unused product can also exhibit a characteristic, so more than one row can apply. Having this chemical in a manufacturing waste doesn't make the waste U220. Match the waste’s origin, formulation and use history. Mixing listed waste with solid waste, or treating it, generally doesn't remove the listing. It takes an applicable exclusion, exception or approved delisting.

Which wastes take U220?

Waste	When it’s U220
Paint thinner	Unused thinner is discarded as a qualifying commercial chemical product in which toluene is the sole active ingredient
Solvent-contaminated wipes	Wipes contain unused toluene meeting U220
Unused toluene	The discarded commercial chemical product is pure or technical-grade toluene, or toluene is its sole active ingredient

Which codes sit beside U220?

Code	What it is
U216	Thallium(I) chloride
U217	Thallium(I) nitrate
U218	Thioacetamide
U219	Thiourea
U221	Toluenediamine
U222	o-Toluidine hydrochloride
U223	Toluene diisocyanate
U225	Bromoform