Report a marine accident

Report a marine accident by calling the MAIB reporting line on +44 (0)23 8023 2527 and then completing the accident report form.


Accident Report Form (ARF)


Accidents, including serious injuries, should be reported to the MAIB by the quickest means possible. This is so that the MAIB can decide whether to investigate the accident without delay, and prevents evidence of all types being lost or decaying.

To report an accident you should phone the MAIB’s dedicated accident reporting line on +44 (0)23 8023 2527 which is monitored 24 hours a day. After this initial notification you can expect to be asked to complete the accident report form (ARF).

Who should report a marine accident?

Regulations and guidance provides further information about who should report marine accidents and the definitions of what a marine accident is.

Filling in the form

Once the ARF form is downloaded and completed it should be emailed to

Published 1 December 2004
Last updated 22 September 2020 + show all updates
  1. Our Accident Report Form has undergone some minor updates, please be sure to use the revised version provided here on our website.

  2. Accident report form updates: Header - email button: email address updated | Section A - occurrence type: marine incident (near miss) drop-down options updated | Section E - casualty data: casualty information section updated.

  3. New accident report form issued.

  4. First published.