Health and Safety

What is RIDDOR and why is RIDDOR reporting important?

Make sure your business complies with RIDDOR reporting guidelines with our expert guide to RIDDOR and how to legally record and report a workplace accident.

  • Learn about employer obligations for recording and reporting workplace accidents.
  • Understand what RIDDOR is, why it is important, and how to record an accident or injury at work.
  • Discover what injuries, diseases and incidents to report and how to let HSE know about an incident.

Despite employers’ best efforts to prevent accidents in the workplace, employees can, unfortunately, be injured or killed at work. Employers are legally obliged to record and report specific injuries, illnesses and incidents. This guide provides help and advice on how to comply with accident reporting regulations, which are more commonly known as RIDDOR.


In 2017-18, there were an estimated 555,000 non-fatal injuries self-reported by workers, while 144 employees were fatally injured. A further 1.4m staff reported suffering from a work-related illness.

Working days lost to workplace injuries cost UK businesses an estimated £5.2bn.

Employers are legally obliged to record certain injuries, illnesses and incidents, and report them to the Health and Safety Executive (HSE). In 2018/19, 69,208 were recorded.

Reduce the risk and impact of workplace accidents with our Health and Safety Awareness online training course, which helps staff identify common workplace hazards. Our health and safety courses train staff on how to record and report workplace incidents properly.

What is RIDDOR and what does it stand for?

The legislation covering the reporting of workplace injuries is the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013, known as RIDDOR.

The RIDDOR regulations relate to “reasonable persons” reporting incidents and injuries. The definition of responsible persons under RIDDOR generally refers to employers, but they can also be various managers, the self-employed and people in control of premises.

Employers must report the following:

  • Fatal injuries
  • Specified non-fatal injuries
  • Occupational diseases
  • Dangerous occurrences (also referred to as ‘near misses’)
  • Incidents resulting in an employee being away from work for seven days or more
  • Incidents involving injured members of the public being taken to hospital
  • Incidents involving gases where people have been taken to hospital

Why is RIDDOR important?

RIDDOR exists to ensure employers and employees are kept safe at work and encourages everyone to follow health and safety procedures to reduce the chance of injuries and accidents.

If an accident does happen at work, the regulations ensure employers report accidents and incidents, bad working practices and poor office safety.

RIDDOR also allows the HSE to keep track of workplace accidents and use the information to identify common occurrences and to develop their enforcement strategy.

Employers who fail to comply with RIDDOR face a fine and a possible prison sentence.

Employer responsibilities

What is RIDDOR - workplace safety

If an incident occurs, the following RIDDOR process is recommended:

  1. Ensure there is no immediate risk of danger and that the employee affected receives appropriate medical attention. Businesses are legally required to have undertaken a first aid risk assessment.
  2. If an employee discovers the incident, they should report it to a manager or supervisor.
  3. The company should record details of the incident. You must keep a record of any reportable death, injury, accident, injury lasting longer than seven days, disease or dangerous occurrence. This allows you to track common incidents and take steps to prevent them.
  4. All reported RIDDOR incidents must be recorded. RIDDOR records must be kept for at least three years, but it is recommended that you keep them for up to six years in case of any legal issues.
  5. Incidents covered by RIDDOR must be reported to the HSE.

How to report an incident

If an incident falls under RIDDOR, you must report it to the HSE within ten days. If the incident leads to more than seven days’ absence from work, it has to be reported within 15 days. Cases of occupational disease must be reported as soon as the person receives a diagnosis.

You must report the incident using the appropriate form on the HSE website. A telephone service is also available for RIDDOR reporting of fatal/specified incidents only – call 0345 300 9923 (opening hours Monday to Friday 8.30 am to 5 pm) to file a report.

You have the option to download the RIDDOR report form, so you have it for your records.

An investigation into what happened should be carried out in line with the organisation's policy. The investigation should lead to a list of suggested measures to prevent future occurrences.

Examples of reportable accidents and incidents


All employee and non-employee deaths resulting from a work-related accident must be reported under RIDDOR. This includes deaths that occur within a year after a workplace accident where the accident is the cause of death.

Suicides and cases of self-harm are not reportable.


Accurate reporting of workplace accidents and incidents is essential

Slips, trips and falls are common incidents that lead to injuries in the workplace. Injuries that must be reported include:

  • Fractures (not including thumbs, fingers and toes).
  • Amputation of a hand, arm, finger, thumb, leg, foot or toe.
  • Loss or reduction of sight in one or both eyes.
  • Unconsciousness caused by a head injury or asphyxia.
  • Crush injury that causes damage to internal organs.
  • Scalping of skin that requires hospital treatment.
  • Injury from working in an enclosed space that leads to hypothermia or heat-induced illness or requires resuscitation or hospital treatment for more than 24 hours.
  • Burns covering over 10% of the body, or damaging the eyes, respiratory system or other vital organs.

Occupational diseases

Carpal tunnel syndrome is a workplace injury that can affect employees

Reportable diseases that have likely been caused by, or made worse by, the person’s current work. It must also be one of these eight conditions:

  • Carpal tunnel syndrome
  • Cramp of the hand or forearm
  • Tendonitis or tenosynovitis
  • Occupational cancer
  • Occupational dermatitis
  • Hand-arm vibration syndrome
  • Occupational asthma
  • Exposure to a biological agent

Dangerous occurrences

‘Near-miss’ incidents that could have caused harm must be reported. They include:

  • Unintentional structural collapses.
  • An explosion or fire which stops work for more than 24 hours.
  • Hazardous escape of substances.
  • Malfunction of breathing apparatus.
  • Electrical discharge from overhead power lines after contact with equipment.

Gas incidents

Certain incidents involving gas must be reported to the HSE.

Distributors, fillers, suppliers and importers of flammable gas must report gas-related incidents where someone dies, loses consciousness or is taken to hospital as a result of an injury.

Registered gas engineers are required to provide details of gas appliances or fittings they consider to be dangerous that may lead to deaths, the loss of consciousness or hospital treatment.

Complying with record keeping and RIDDOR reporting

As an employer, you must comply with RIDDOR to protect the health and safety of your workforce.

Staying on top of records and reporting accidents will ensure you are equipped to manage risks and prevent future injuries, accidents and incidents of ill-health.

Reduce your business risk for new employees with our Health and Safety Induction online training course. Specially designed for new starters, it educates staff on their responsibilities including how to report and record a workplace accident.

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