To enable users to understand the operation of the Engineering and Construction Contract, this book contains flow charts which set out the procedural logic of the 75 clauses that can be presented with benefit by flow charting. Construction Clients' Board endorsement of NEC3 The Construction Clients' Board (formerly Public Sector Clients' Forum) recommends that public sector organisations use the NEC3 contracts when procuring construction. Standardising use of this comprehensive suite of contracts should help to deliver efficiencies across the public sector and promote behaviours in line with the principles of Achieving Excellence in Construction.