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Canadian waste code finder

A4040 Basel waste code Waste from making & using timber-treating chemicals.

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

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A4040, Wood-preservative process waste.

  • Basel List A codes

    Wood-preservative process waste

Use A4040 for wood-preservative process waste as a presumptively hazardous Basel waste.

Basel List A waste from manufacturing, blending & using wood-preserving chemicals, such as creosote & treatment plant residues.

Is Basel A4040 hazardous waste?

Normally yes. Basel A4040 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 A4040 cover?

Covers waste from making, formulating or using chemicals that preserve wood.

Official wording
Read the official entry

Is wood preservative waste Basel A4040?

CodeWhen it fits
A4040Waste from making, formulating or using chemicals that preserve wood.

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 A4040?

CodeWhat it is
A3210Plastic waste hazardous through Annex I content
A4010Pharmaceutical process waste outside List B
A4020Clinical, treatment and medical-research waste
A4030Biocide and crop-treatment product waste
A4050Cyanide-bearing waste
A4060Oil or hydrocarbon mixed with water
A4070Ink, dye, pigment, paint or finish process waste
A4080Explosive waste outside List B