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Canadian waste code finder

A4120 Basel waste code Waste that contains organic peroxides or similar.

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  • Based on ECCC's classification guide and SOR/2021-25
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A4120, Peroxide-bearing waste.

  • Basel List A codes

    Peroxide-bearing waste

Use A4120 for peroxide-bearing waste as a presumptively hazardous Basel waste.

Listed withBasel List A codes

Basel List A waste that contains, consists of or is contaminated with peroxides, such as organic peroxide initiators & aged ethers.

Is Basel A4120 hazardous waste?

Normally yes. Basel A4120 is a List A description, so the material counts as hazardous unless evidence shows it has no Annex III hazardous characteristic. The description and any exclusions still have to match.

For federally regulated international shipments, the applicant enters the waste classification in the waste-line details of the federal notification in CNMTS. Check the movement rules and exclusions.

What does Basel A4120 cover?

Covers waste that contains, consists of or is contaminated by peroxides.

Official wording
Read the official entry

Is peroxide waste Basel A4120?

CodeWhen it fits
A4120Waste that contains, consists of or is contaminated by peroxides.

Pick the entry whose description and conditions match the waste. The code classifies the waste. It doesn't settle whether SOR/2021-25 applies, what it excludes, what the destination country controls or the intended operation.

Which codes sit beside Basel A4120?

CodeWhat it is
A4080Explosive waste outside List B
A4090Acidic or alkaline solution outside List B
A4100Industrial off-gas control waste
A4110Polychlorinated dioxin or furan waste
A4130Hazardous contaminated packages and containers
A4140Obsolete or off-specification hazardous chemicals
A4150Unidentified or new research chemicals
A4160Spent activated carbon outside List B

Sources