Monitoring systems › Helideck and Aviation Monitoring › BSL D 5-1
Regulation · Norway
BSL D 5-1: Offshore helideck regulation (Norway)
The Norwegian aviation regulation for the use of offshore helidecks, covering responsibilities, documentation and operations, and the technical requirements for helidecks and their equipment.
What is BSL D 5-1?
BSL D 5-1 is the Norwegian aviation regulation for the use of offshore helidecks, formally titled “Forskrift om luftfart med helikopter – bruk av offshore helikopterdekk” (Regulations on aviation with helicopters: use of offshore helidecks (tr.)), published as Lovdata 2019-05-14-604.
The regulation applies to helicopter operators with specific approval for offshore operations who operate to and from offshore helidecks, with certain exclusions, such as helidecks on Norwegian military ships.
What the regulation covers
BSL D 5-1 covers the framework for safe offshore helideck use, including responsibilities, documentation and operational expectations, as well as technical requirements for helidecks and associated equipment. For example, it includes requirements for:
Helideck motion registration
Continuous registration of pitch, roll, inclination and heave rate on moving helidecks, and retention of the registrations. HMS →
Video surveillance
Video surveillance of the helideck, including retention periods. HAV →
Warning and status lights
A visual warning and status light system that can activate automatically in unacceptable risk situations, linked to gas release and helideck movement detection.
Official documents
BSL D 5-1
The regulation itself, in Norwegian, with guidance from CAA Norway.
Offshore Norge 074 Helideck Manual
Recommended guidelines for helideck personnel on the Norwegian Continental Shelf.
Offshore Norge 074 (Helideck Manual): where it fits
Alongside BSL D 5-1, Offshore Norge guideline no. 074 (Helideck Manual) is the standard operational reference used by facility operators on the Norwegian Continental Shelf for helideck management and offshore helicopter operations. It supports consistent helideck practices across facilities and helps align day-to-day operations with the wider Norwegian regulatory framework.
What 074 says about the HMS
- All HMS data shall be made available for real-time sharing with helicopter operators
- Data display layouts shall be approved by the helicopter operators
- For moving helidecks, the HMS should be verified as conforming with the applicable standard (Appendix K), and an HMS screenshot is submitted as part of the helideck reporting workflow
- If the HMS is unavailable, movement values may be taken directly from the MRU as a fallback
How WISE Group supports BSL D 5-1
A clear, workable outcome
Whether you are clarifying what applies to your unit, preparing supporting documentation, addressing operational gaps or resolving monitoring and recording issues, we support offshore operators with:
- BSL D 5-1-focused guidance to interpret requirements and align next steps
- Complete systems for helideck monitoring, recording and status/alarm functions
- Technical support and troubleshooting for helideck monitoring and recording set-ups
- Installation, commissioning and maintenance support across the lifecycle of your system
Helideck standards
Related standards
CAP 437
The UK CAA standard for offshore helidecks, and the international benchmark.
Read the overview →BSL D 5-1
The Norwegian regulation for the use of offshore helidecks.
You are hereNORMAM-223
The Brazilian Maritime Authority standard for helidecks in Brazilian waters.
Read the overview →Global · currentHCA Rev 9c
The HCA standard for HMS and weather data on moving helidecks.
Read the overview →Questions about BSL D 5-1?
Whether you are clarifying what applies to your unit or resolving a monitoring or recording issue, our team can tell you what the regulation means for your installation.
Useful to include
- The unit, and whether the helideck is fixed or moving
- The monitoring and recording already installed
- What you need to resolve
Read BSL D 5-1 at the source
The regulation is published on Lovdata, with guidance from CAA Norway.
Prefer to talk it through?
Our helideck team can walk you through what BSL D 5-1 means for an existing or planned installation.
Get in touch
Tell us about the helideck and what you need to know. You can also contact us directly.