This standard has been prepared for use in a contractual relationship in which one party (the
subcontractor) undertakes to execute a part of building or civil engineering work (including installations,
new buildings, maintenance, repairs and alterations) for which the other party (the main contractor) has
undertaken to the main contractor or another contractor to execute, and in which most of the drawings,
descriptions and calculations are to be provided by the main contractor.
The standard is suitable for contractual relationships in which the project’s scope or organisation indicates
a need for formalised notification rules with strict consequences (preclusion of claims) if notification is
omitted, or an extensive duty to coordinate the work with all the other participants in the project. In
contractual relationships where, due to the organisation or scope of the project, there are no such needs,
NS 8416 Simplified Norwegian contract for sub-contracts concerning the execution of building and civil
engineering works is much more suitable.