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NEC4 Engineering and Construction Subcontract

NEC4 Engineering & Construction Subcontract (ECS) – Detailed review of changes

Here is the GMH Planning detailed guide as to the most important changes within the new NEC4 version of Engineering and Construction Subcontract (ECS). If you are fairly familiar with the NEC3 version then you will find this guide a very useful summary as to what you need to know is different within NEC4.

Each of these guides have now all been colour coded so that for each change identified it is split into one of five categories for easy reference: 1) new NEC4 clause, 2) new point of clarity, 3)Change to previous wording, 4) Same clause re-numbered, 5) Deleted NEC3 clause.

For how these should be understood in practice, we regularly run public online NEC4 training workshops to expand upon the practical application of this document. For details of the next NEC4 Overview training workshop please see our scheduled online NEC training workshops or our tailored NEC training courses.

General ECS changes

  • Better laid out with more separate paragraphs and more bullet points
  • Language change – inform or state rather than notify and instruct in some places
  • Gender neutral
  • Reworded a few more option specific clauses such that they are now core clauses – less option

Please download NEC4 Engineering and Construction Subcontract – review of changes from NEC3 document for full details: