Man completing a RIDDOR form

A Simple Guide to RIDDOR Reporting

RIDDOR, which stands for Reporting of Injuries, Diseases and Dangerous Occurrences Regulations is the legislation which controls which workplace accidents, injuries and illnesses you should report, and how you should report them.


In this post, we give you a simplified overview of these instructions, and point you in the direction of more detailed information when and where you need it.

Changes to RIDDOR Regulations

Please note that regulations do change over time, and it is possible for errors to creep in. So please make sure that you always also refer to the HSE’s own online version of the regulations “Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013”, which you'll find on the HSE's website.  It is the HSE's document which you should use as the definitive instruction on dealing with reportable incidents in the workplace.

The new RIDDOR 2013 regulations came into force on 1st October 2013. The changes were aimed at simplifying the reporting requirements for employers.

They include:

  • Reportable injuries (including deaths) will only need to reported if they occur as a the result of a work related accident
  • a reclassification of major injuries to a much shorter list of "specified injuries"
  • Replacing the existing list of 47 industrial diseases with a list of 8 categories of work related illness
  • Reducing the number of dangerous occurrences that will require reporting.

No significant changes were made to the reporting requirements for:

  • fatal accidents
  • accidents to members of the public
  • accidents leading to incapacitation of the worker for more than 7 days



So, what is RIDDOR?

RIDDOR is the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995, Revised 2013.

Employers, the self-employed and those in control of premises are required by law to report specified workplace incidents, such as work-related deaths, specified injuries, 7-day injuries (those causing more than seven day’s inability to carry out normal duties), work related diseases, and dangerous occurrences (near miss accidents).

An Accident

Ok - you know what an accident is... but what does it mean in the context of RIDDOR?

It is a separate, identifiable, unintended incident that causes physical injury and specifically includes acts of non-consensual violence to people at work.

Over-3-day and over-7-day injuries

An over-3-day injury is where the employee or self-employed person is away from work or unable to perform their normal work duties for more than 3 consecutive days, excluding the day they were injured but including rest days and holidays.

An over-7-day injury is equivalent, but is where the person is away or unable to perform normal duties for more than 7 consecutive days.

Dangerous Occurrence

You could describe dangerous occurrences as 'near-miss' events - something that happened which could have resulted in serious injury or death.

Legal Requirements

It is a legal requirement to report incidents and ill health at work and the information gathered enables the Health & Safety Executive (HSE) and other agencies to gather information about how and why risks arise and to investigate serious incidents. This enables a variety of agencies the opportunity to work together to make workplaces safer and thus prevent accidents and illness from occurring

What do the Regulations Govern?

The legislation tells you:

  • which incidents you need to record
  • what information you need to record about them
  • how long you need to retain the information
  • which of the above incidents you need to report, and to whom, and
  • how the information should be reported

It also helps you to plan your recording processes, and as a result, gives you the information you need to reduce the number of such incidents in the future.

Who do they apply to?

Employers, the self-employed and those in control of premises are required by law to report specified workplace incidents, such as work-related deaths, specified injuries, over-7-day injuries, work related diseases, and dangerous occurrences (near miss accidents).

Assessing whether reporting is required

The following outlines the rules over whether different types of occurrences need to be reported.


RIDDOR rules use three tests to determine whether an injury is reportable:

1. Was it an accident which caused the injury?
For an incident to be considered as an accident, it needs to have an identifiable, external event which causes the injury. For example, a broken leg caused by a collision with a forklift truck would be an accident. A bad back caused by bending down would not be considered an accident.

2. Was it work related?
To decide whether an accident was work related, you need to consider whether any of the following were a factor:

  • the way in which the work was carried out
  • any machinery, equipment or substances (chemicals etc) that were used for the work
  • the condition that the site or premises were in.

3. Was the injury itself reportable?
If they also meet the first two criteria, the following injuries are considered reportable

  • The death of any person
  • Any injury to workers which appears on the HSE's specified injury list (see below)
  • Over 7-day Injuries
  • Injuries to non-workers which cause them to be taken directly to hospital for treatment
  • Injuries to non-workers which occur on hospital premises, and which are on the specified injury list.

Specified injuries , RIDDOR 2013:

  • fractures,  except to fingers, thumbs and toes
  • amputation of an arm, hand, finger, thumb, leg, foot or toe
  • permanent loss of / reduction in sight
  • crush injuries causing internal organ damage
  • serious burns covering more than 10% of the body or damaging the sight or respiratory system / other organs
  • scalping (where the skin separates form the head) which requires hospital treatment
  • unconsciousness caused by head injury or asphyxia
  • any injury arising from working in a confined space, causing hypothermia, heat induced illness or requires resuscitation or admittance to hospital for more than 24 hours.
  • Over-7-day injuries to workers – A report must be made within 15 days of the accident. Injuries over three days need to be recorded but not formally reported until the worker has been incapacitated for more than 7 days.
  • Injuries to non workers - injuries to members of the public and those people not at work who are taken from the scene of an accident to hospital as a result of a work related accident must be reported.  Diagnostic tests and examinations are not considered to be "treatment", therefore there is no need to report injuries where people are taken to hospital for precautionary measures.
  • Reportable Occupational diseases include:
    • carpal tunnel syndrome
    • severe cramp of the hand or forearm
    • occupational dermatitis
    • hand-arm vibration syndrome
    • occupational asthma
    • tendonitis or tenosynovitis of the hand or forearm
    • any occupational cancer
    • any disease attributable to an occupational exposure to a biological agent
  • Dangerous occurrences – i.e. specified "near miss" events. There are now 27 categories of dangerous occurrences for example the collapse, overturning or failure of load bearing lifts. Please see for a full list of these categories
  • Gas Safe registered gas fitters must also report dangerous gas fittings they find and if they hear about anyone who has died, become unconscious or taken to hospital in connection to gas they have distributed, supplied or fitted, and gas conveyors/suppliers must report some flammable gas incidents including
    • accidental leakage of gas
    • inadequate combustion of gas
    • inadequate removal of the products of the combustion of gas
  • Mine, quarries and offshore site disturbance have separate rules as the site must not be disturbed until three days have elapsed or it has been inspected.

Not all incidents are reportable but all work activities are regulated by RIDDOR. Incidents must be reported within 10 days of their occurrence.

There are specific regulations affecting dif