The facilities regulations § 21

§ 21 Human-machine interface and information presentation

Monitor-based equipment and other technical equipment for monitoring, controlling and operating machines, installations or production processes, shall be designed to reduce the risk of mistakes that can have an impact on safety.
Information transmitters and operating devices shall be designed, placed and grouped to allow for simple and quick receipt of necessary information and implementation of necessary actions. The presented information shall be correct and easy to understand.
Information systems shall be dimensioned for both normal and critical situations.
Section last changed: 01 January 2014

In order to fulfil the requirements as mentioned in the first subsection, the NORSOK S-002 standard Chapters 7.8.3 and A.9 in Annex A should be used.
In order to fulfil the requirement for information as mentioned in the second subsection, the standards EN 894 Part 1-3 and NS-EN 614 Part 1 should be used, with the following addition: the information should be suitably structured and consistent with regard to the use of colour, text and symbols.
The Norwegian Shipowners' Association Norm for physical-chemical working environment on mobile facilities built before 1 August 1995 and operating on the Norwegian shelf (in Norwegian only) can be used as an alternative to NORSOK S-002 for the areas covered by the norm.
For the design of alarm systems, refer to Section 34a on control and monitoring system.