The guidelines to the regulations often refer to recognized standards as a way to fulfil the functional requirements in the regulations.
International standards, like ISO, IEC and EN standards, will normally not be available in full-text on the Internet. These standards can be ordered from the national standardisation organization. This will also apply to most national standards, like API-standards and NORSOK.
Some petroleum-related standards, e.g. those issued by DNV GL are available in full-text on the Internet.
The Norwegian Standards Association (NSF)
Sells and markets EN-, NS-, ISO- og IEC-standards.
DNV GL OS-standards
Norwegian Oil and Gas Association
Norwegian Oil and Gas’ guidelines
American Petroleum Institute (API)
International Maritime Organization (IMO)
IMO codes og resolutions
The International Marine Contractors Association (IMCA)