Compliance 2 min read Reviewed Sept 2026

RIDDOR

Also known as: Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013

RIDDOR requires employers to report specified workplace injuries, occupational diseases and dangerous occurrences to the enforcing authority.

The short answer
  • The duty to report certain injuries, diseases and dangerous events to the HSE.
  • Reporting is by the responsible person, usually the employer, not the injured worker.
  • Records must be kept for at least three years.

RIDDOR is the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013. It places a legal duty on the responsible person, usually the employer, to report specified workplace events to the enforcing authority.

It is not a general accident-reporting duty. Most workplace injuries are not RIDDOR reportable. What RIDDOR captures is a defined list, and the practical skill is recognising which events on your site fall inside it.

What is reportable

Deaths arising from a work activity.

Specified injuries, which include fractures other than to fingers, thumbs and toes, amputations, permanent loss of sight, crush injuries to the head or torso, serious burns, scalpings, loss of consciousness from head injury or asphyxia, and injuries from working in an enclosed space requiring resuscitation or hospital admission.

Over-seven-day injuries, where someone is unable to perform their normal duties for more than seven consecutive days. The clock excludes the day of the accident but includes weekends. Separately, absences over three days must be recorded even though they are not reportable.

Occupational diseases diagnosed in writing by a doctor, including carpal tunnel syndrome, hand-arm vibration syndrome, occupational dermatitis, occupational asthma and certain cancers. These matter in construction because they often trace back to COSHH exposures years earlier.

Dangerous occurrences, a specified list of events that must be reported whether or not anyone was hurt. Scaffold collapse, the collapse or overturning of lifting equipment, and unintentional collapse of a structure all appear on it. This is where the line between an internal near miss and a legal duty sits.

Injuries to members of the public taken directly from the scene to hospital for treatment.

Timescales and records

Deaths and specified injuries must be reported without delay and confirmed within ten days. Over-seven-day injuries must be reported within fifteen days. Occupational disease reports go in as soon as a written diagnosis is received.

Records must be kept for at least three years. Given how long disease claims take to surface, keeping them longer is common sense.

Getting it right in practice

The failure is rarely refusal to report. It is that nobody at site level recognised the event was reportable, or the detail captured at the time was too thin to make the judgement later.

That argues for capturing incidents properly at the point they happen, with photographs, witnesses and the location, and reviewing them promptly against the reportable list. Where the event is reportable, the report goes to the HSE. Where it is not, it still tells you something worth acting on. Sync’s incident reporting is built to capture that detail from site.

Common questions

What has to be reported?

Deaths, specified injuries such as fractures other than to fingers and toes, amputations, serious burns and injuries leading to unconsciousness. Injuries causing more than seven days of incapacity. Certain occupational diseases including carpal tunnel syndrome, hand-arm vibration syndrome and occupational dermatitis. And a list of specified dangerous occurrences, some of which involve no injury at all.

What is the over-seven-day rule?

An injury that stops a worker doing their normal duties for more than seven consecutive days, not counting the day of the accident but including weekends and rest days, must be reported within fifteen days. Separately, any absence over three days must be recorded, even though it is not reportable.

Do I report an accident to a member of the public?

Yes, where a person not at work is injured as a result of a work activity and is taken from the scene to hospital for treatment. On construction sites bordering public areas this is a real and commonly missed category.

How long do records have to be kept?

At least three years from the date the record was made. Given that occupational disease claims can surface many years after the exposure, most contractors keep them considerably longer.

Keep the paperwork where the work is

Sync keeps your health and safety records against the projects they belong to, with review dates tracked, so the current version is there when someone asks for it.