Identification of Offshore Installations: Offshore Installations and Pipeline Works (Management and Administration) Regulations 1995

  • Operations notice: 39
  • Issue date: February 2019


This Notice provides guidance for the clear identification of installations as required by the Offshore Installations and Pipeline Works (Management and Administration) Regulations 1995, Regulation 19. It replaces the previous issue dated October 2015. Each installation must be readily identifiable on approach, by sea or air, using unambiguous signage and effective aeronautical communication. This notice should be read in conjunction with the Energy Act 2008, Part 4A Consent to Locate.


Helicopter pilots and operators have reported a number of 'wrong rig' landings to the CAA. Instances have occurred when radio call signs, helideck markings and installation side sign identification have been inconsistent. This has led to confusion among pilots in identifying installations and has consequently resulted in potentially serious 'wrong rig' landings.

Action required

Dutyholders should check that the hardware and management systems in place for identification of their installations do not have the potential to cause confusion or ambiguity to any approaching helicopter. It is recommended that, where practicable, the radio call sign, helideck markings and side signage should be identical; helicopter operators should be consulted on their acceptability for flight operations.

If the name of the installation changes, the signage and radio call sign should be promptly modified to show this. All interested parties should be informed.

Relevant legal requirements

The relevant legal requirements are:


This guidance is issued by the Health and Safety Executive. Following the guidance is not compulsory and you are free to take other action. But if you do follow the guidance you will normally be doing enough to comply with the law. Health and safety inspectors seek to secure compliance with the law and may refer to this guidance as illustrating good practice

Updated 2021-08-13