For most types of incident, including:
the responsible person must notify the enforcing authority without delay, in accordance with the reporting procedure (Schedule 1). This is most easily done by reporting online. Alternatively, for fatal accidents or accidents resulting in specified injuries to workers only, you can phone 0845 300 9923.
NB: A report must be received within 10 days of the incident.
For accidents resulting in the over-seven-day incapacitation of a worker, you must notify the enforcing authority within 15 days of the incident, using the appropriate online form.
Cases of occupational disease, including those associated with exposure to carcinogens, mutagens or biological agents, as soon as the responsible person receives a diagnosis, using the appropriate online form.