Ontario waste class C Acids & caustics that burn skin & eat metal.
- Free, no account
- Based on Ontario’s registration characterization flowchart
- Nothing is stored
Find a Canadian waste code
C, Waste with corrosive properties.
Ontario waste characterizations
Waste with corrosive properties
Use C when the Ontario flowchart makes this the primary characterization.
ComplyOnSiteWhere does Ontario C go on the Ontario manifest?
After the 3-digit waste class. The letter C is the primary characterization in Ontario’s waste number. The generator picks it by working through the whole registration flowchart, not by choosing a hazard from the waste’s name. When several characterizations apply, the first one the flowchart reaches is primary.
For a subject-waste shipment, enter the class-and-letter waste number in the waste details of the Ontario hazardous waste manifest. The generator registers the stream and certifies the shipment details. Streams under land-disposal-restriction notification also need their secondary characterizations identified.
What does Ontario C cover?
Ontario uses C for waste with corrosive properties when its flowchart makes C the primary characterization. The letter goes with the 3-digit class for the material or process. The letter gives the characterization and the class identifies the waste stream. Together they make the Ontario waste number.
Is corrosive waste Ontario C or another letter?
| Code | When it fits |
|---|---|
| C | The completed Ontario flowchart makes C the primary characterization. |
Registration and manifest exclusions still apply. A characterization letter doesn’t remove a specific exclusion or bring every shipment under the Registry.