NEC3 and NEC4 Compared is a practical reference which covers on a clause-by-clause basis, the differences between the NEC3 and NEC4 Engineering and Construction Contracts (ECC). Using clear and simple language, the book will allow the reader to gain a rapid overview of all the updates to the ECC Contract forms. This revised edition includes coverage of January 2019, October 2020, and January 2023 amendments.
The book presents each clause of NEC3 ECC opposite the new wording of NEC4 ECC with all changes highlighted. Detailed explanatory notes are included which describe the significance of important changes. Users will be able to look up any clause in the NEC3 ECC and see at a glance, what, if anything, has changed. The book covers all updates to the NEC ECC but it will also be useful for those using other contracts in the NEC4 contract suite, so anybody wishing to understand the new provisions applied across the suite of NEC4 contracts will benefit from this book.
Written by an established NEC expert, and a member of the NEC4 drafting team, this companion to the NEC4 ECC will be a valuable resource for anyone who is familiar with the provisions of NEC3 ECC and is looking for an easy-to-use comparison of the changes between the two editions.
Amendments January 2019, October 2020 and January 2023 vi
Introduction 1 Schedule of Options 2 3
Core Clauses 6 7
1 General 6 7
2 The Contractors main responsibilities 18 19
3 Time 24 25
4 Quality management 30 31
5 Payment 36 37
6 Compensation events 42 43
7 Title 56 57
8 Liabilities and insurance 58 59
9 Termination 64 65
Main Option Clauses 72 73
A Priced contract with activity schedule 72 73
B Priced contract with bill of quantities 76 77
C Target contract with activity schedule 80 81
D Target contract with bill of quantities 88 89
E Cost reimbursable contract 96 97
F Management contract 100 101
Resolving and Avoiding Disputes 106 107
Secondary Option Clauses 126 127
Schedule of Cost Components 174 175
Short Schedule of Cost Components 182 183
Glossary of New ECC4 Defined Terms (Capitalised) and New Identified Terms (In
Italics) 189
Robert Alan Gerrard BSc(Hons), LLM, FRICS, FCInstCES, NECReg is a Senior NEC Consultant and has been the NEC Users' Group Secretary since 2005 and was part of the NEC4 drafting team. He is an NEC consultant and has run numerous international NEC training courses, working with NEC contracts since 1995.
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