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1st October, 2019

RIDDOR Reporting Timescales Explained (When To Report)

Knowing RIDDOR means understanding not only what to report, but also when to report. You see, if an accident or incident needs to be reported under RIDDOR, it must be reported within a certain amount of time. In some cases, this can mean immediately. In other cases, it can mean within a few days. So, what are the RIDDOR reporting timescales?

Under (Reporting of Injuries, Diseases and Dangerous Occurrences Regulations) there are duties to report certain types of injuries, diseases and dangerous occurrences.

Not only do these events need to be reported, but they need to be reported within specified timescales.

Depending on the type of event, RIDDOR timeframes fall into one or more of the following three categories:

  • Without delay
  • Within 10 days
  • Within 15 days

In this blog post, we are going to look in detail at when to report each type of RIDDOR related occurrences, from deaths and serious injuries to illness and incidents.

It's worth remembering that in every case, a RIDDOR report should be submitted as soon as possible. It's what RIDDOR requires, and it saves you worrying about deadlines. If you are aware an incident or accident has occurred and know it's reportable under RIDDOR, get it reported straight away.

Without Delay

The most immediate timeframe RIDDOR has to offer is, without delay. This means you should report the incident as soon as possible.

In particular, this timeframe applies to any fatality that occurs as the result of a work-related accident. It should be no surprise that the most serious of RIDDOR reportable incidents (death) would be required to be reported quickly. This applies even if that death is not immediately after the accident, but as long as the death is caused by the accident, and occurs within one year of the date of the accident.

But it's not just deaths that need to be reported without delay. Most types of RIDDOR reportable incidents need to be reported without delay.

  • Accidents resulting in the death of any person
  • Accidents resulting in major injuries to workers
  • Accidents requiring hospital treatment to non-workers
  • Dangerous occurrences

For fatal and major injuries, the HSE even provides a phone number (during office hours) to make your initial report. And online reports can be made at any time.

Find out more about how to make a RIDDOR report in How To Report An Accident Under RIDDOR.

Certain diseases are also notifiable and must be reported under RIDDOR. Things like cancers, asthmas, hand-arm vibration syndrome, dermatitis and other diseases caused by, or made worse by, work. This type of RIDDOR report doesn't follow an accident or incident, because work-related diseases often take time to develop. However, these occupational diseases are required to be reported without delay following diagnosis.

Find out more about RIDDOR reportable diseases in What Injuries At Work Are RIDDOR Reportable?

10 Days

If without delay is sounding a little urgent, that's because it is. Schedule 1 of RIDDOR states again that in the case of injuries, fatalities and dangerous occurrences, the responsible person must notify the relevant enforcing authority by the quickest practicable means without delay.

But filling in forms and gathering information takes time. So while you must notify without delay, you do get some extra time to send a full report. RIDDOR allows 10 days for the full report of the incident to be sent in an approved manner (e.g. the full RIDDOR report).

1.—(1) Where required to follow the reporting procedure … the responsible person must—

  1. notify the relevant enforcing authority of the reportable incident by the quickest practicable means without delay; and
  2. send a report of that incident in an approved manner to the relevant enforcing authority within 10 days of the incident.
The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 Schedule 1

This doesn't always mean you need to report twice. But if you know it's going to take you a few days to get the RIDDOR report completed, but you could report the incident sooner, you should. 10 days is a maximum, but to comply with the 'without delay' aspect, you need to report as soon as you can.

15 Days

Sometimes, you get a bit longer to report under RIDDOR. You get 15 days. This is only in one specific case. Where a person at work is incapacitated for more than seven consecutive days after a work-related accident (known as an over 7-day injury), then you get the extra time to report.

This is because you often won’t know until 7 days after the accident whether it is reportable or not. In this category of injury, you get up to 15 days to report. It is worth noting that this is 15 days from the day of the accident and not 15 days from the 7 days incapacitation.

So, if someone is off work following an accident, it's worth keeping an eye on how long they are unable to carry out their normal work. And be ready to submit your RIDDOR report if needed. 15 days is the maximum and, in practice, the regulations require this to be reported as soon as practicable.


For more information on RIDDOR, you can take the RIDDOR eLearning course. On successful completion of the course, download a certificate for your training records.

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This article was written by Emma at HASpod. Emma has over 10 years experience in health and safety and BSc (Hons) Construction Management. She is NEBOSH qualified and Tech IOSH.

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