Employers are required to immediately investigate any incident that involves the following:

1. Serious injury to or death of a worker
2. A major structural failure or collapse
3. A major release of a hazardous substance
4. Fire or explosion with potential for serious injury
5. A blasting accident causing personal injury
6. Dangerous incident involving explosives, whether or not there is personal injury
7. A diving incident, as defined by the Occupational Health and Safety Regulation
8. Minor injury or no injury but had potential for causing serious injury
9. Injury requiring medical treatment beyond first aid

Note: For the first six types of incidents, you must also notify WorkSafeBC immediately. Call toll-free 1.888.621.7233. After hours call 1.866.922.4357.

If the incident is not one of the types listed above (for example, it was a minor incident and there was no risk of serious injury), you are not required to investigate it, but it's good practice.