Ontario waste class S Poisonous enough to harm in small amounts.
- Free, no account
- Based on Ontario’s registration characterization flowchart
- Nothing is stored
Find a Canadian waste code
S, Waste of severe toxicity.
Ontario waste characterizations
Waste of severe toxicity
Use S when the Ontario flowchart makes this the primary characterization.
ComplyOnSiteWhere does the letter S go in an Ontario waste number?
After the 3-digit waste class. The letter S is the primary characterization in an Ontario waste number. The generator picks it by working through the whole registration flowchart, not by choosing the hazard that sounds closest to the waste’s name. If 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 must also name their secondary characterizations.
What does the Ontario letter S stand for?
The letter S marks waste of severe toxicity when Ontario’s flowchart makes it primary. It pairs with the 3-digit class, which describes the material or process. The letter gives the characterization and the class gives the waste stream. Together they make the Ontario waste number.
When does waste get the Ontario letter S?
| Code | When it fits |
|---|---|
| S | The finished Ontario characterization flowchart ends with S as the primary characterization. |
Registration and manifest exclusions still apply. A characterization label doesn’t remove a specific exclusion, and it doesn’t put every shipment under the Registry.