Health and Safety at Work etc Act 1974
The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013

Report of a Dangerous Occurrence


This form is for duty-holders only to report defined Dangerous Occurrences under RIDDOR. It is not for making a complaint about or reporting a workplace issue. Advice for this is on the HSE website.

About you and your organisation

About where the dangerous occurrence happened

About the dangerous occurrence

In which local authority did the incident occur?  

Please indicate the local authority area in which the site is located. You need to select the Country first, then the geographical area (England only), and finally the local authority.
Selecting the local authority will help ensure that the appropriate Enforcing Authority (EA) for that area receives the notification.
For local authorities in England, each is allocated to a geographical area. The information is available on 'Find your local council' opens in new window

What type of work was being carried out (generally the main business activity on the site)?

Enter information on the industry to which the dangerous occurrence should be classified. In most cases this will involve classifying the main activity underway at the site where the dangerous occurrence happened.
The categories on this form are based on Standard Industrial Classification (SIC 2007). To see which detailed activities are available under each main industry, these are available in an Excel Spreadsheet opens in new window.

Type of dangerous occurrence

Please provide further relevant information. For example:
  • further details about the operation or activity in progress
  • the environmental conditions
  • the name of any substances involved
  • the name and type of any machinery involved
  • the events that led to the incident
  • the part played by any people
  • action taken (if any) to prevent similar incidents occurring.

Thank you for submitting your RIDDOR form

Your form has been received and has been assigned the Notification number . If you wish to keep a copy of the form, please download it using the button below. YOU WILL NOT RECEIVE ANY OTHER CONFIRMATION.

Return to RIDDOR home page.

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