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A4140 Basel waste code Expired or off-spec chemicals that are still hazardous.

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  • Based on ECCC's classification guide and SOR/2021-25
  • Nothing is stored

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A4140, Obsolete or off-specification hazardous chemicals.

  • Basel List A codes

    Obsolete or off-specification hazardous chemicals

Use A4140 only when its complete Basel List A codes description applies.

Listed withBasel List A codes

Basel List A waste of outdated or off-spec chemicals that still show a hazard characteristic, such as toxic or flammable.

Is Basel A4140 hazardous waste?

Normally yes. Basel A4140 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 A4140 cover?

Covers waste made up of or containing chemicals in Annex I categories that are off specification or obsolete and show an Annex III characteristic. Obsolete means unused within the manufacturer's recommended period.

Official wording
Read the official entry

Are obsolete chemicals Basel A4140?

CodeWhen it fits
A4140Annex I chemicals that are off specification or obsolete and show an Annex III characteristic.

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 A4140?

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
A4120Peroxide-bearing waste
A4130Hazardous contaminated packages and containers
A4150Unidentified or new research chemicals
A4160Spent activated carbon outside List B

Sources