Following the publication of NEC4 in June 2017 there has been discussion and feedback from users. We continue to enhance and improve the contracts and the details of these amendments can be found below.
NEC4 Amendments - October 2020
Specific amendments
Y(UK)1
Amendments to Y(UK)1 - Alliance Contract (ALC)
Amendments to Y(UK)1 - Engineering and Construction Contract (ECC)
Amendments to Y(UK)1 - Engineering and Construction Subcontract (ECS)
Amendments to Y(UK)1 - Professional Service Contract (PSC)
Amendments to Y(UK)1 - Professional Service Subcontract (PSS)
Amendments to Y(UK)1 - Supply Contract (SC)
Amendments to Y(UK)1 - Term Service Contract (TSC)
Amendments to Y(UK)1 - Term Service Subcontract (TSS)
Y(UK)2
Amendments to Y(UK)2
X22
Revised X22 - Alliance Contract (ALC)
Revised X22 - Engineering and Construction Contract (ECC)
Read our brief guide to the Oct 2020 amendments and understand how these changes impact NEC3 Contracts
NEC4 Amendments - January 2019
To build on the constructive feedback and further improve the contracts the NEC has published a set of amendments. Users should consider reflecting these changes in their upcoming tenders or existing contracts as amendments.
ECC Clause 63.5: Assessment of Delay Due to a Compensation EventA change has been made to clause 63.5 to embed good practice and provide further clarity around the process. In summary, the third paragraph has been replaced by:
“The assessment takes into account
- any delay caused by the compensation event already in the Accepted Programme and
- events which have happened between the date of the Accepted Programme and the
This change was in response to user feedback after the ‘Practice Note 1’ published in in October 2017, where users asked for more formal provision within the contract to embed the good practice contained in the practice note.
This change also applies to the equivalent clauses in DBOC, ECS, PSC, PSS, SC, TSC and TSS.
ECC Clause 90.2: Termination TableA minor change has been made to provide consistency with the procedures that apply in the event of termination by the Contractor due to the same ‘no fault’ reasons. No changes have been made to the amounts due as stated in the Termination Table.
This change also applies to DBOC, ECS, PSC, PSS and SC.
ECC Option C, D, E and F Clause 50.9 – Agreement of Defined CostMinor improvements have been made to clause 50.9 to clarify that the finalisation is for the Defined Cost for a part of the works giving closure to both the Client and Contractor in relation to these costs.
This change also applies to the equivalent clauses in DBOC, ECS, PSC, PSS, TSC and TSS.
ECC Option W1 and W2 – Senior RepresentativesAn addition has been made to Clauses W1.1(1) and W2.1(1) to allow either Party to replace their Senior Representative after notifying the other Party of the name of the replacement. This provides a formal process to change the Senior Representatives, which otherwise would require the mutual agreement of the Parties.
This change also applies to the equivalent clauses in DBOC, ECS, PSC, PSS, SC, TSC and TSS.
PSSC – The Consultant’s Contract Data – People RatesChanges have been made to the PSSC to clarify the difference between work undertaken on a time charge basis as opposed to rates and lump sums.
The first change is to clarify that the Client has to select one of these options as the contract does not provide for a mixture of time charge and rates and lump sums to be used.
NEC4 AmendmentsIt is now also clear that where work is to be carried out on a time charge basis the Consultant includes people rates for its own people and people provided by a subcontractor and that these rates should be exclusive of the Fee. Where work is undertaken on a time charge basis the fourth bullet of clause 53.3 has been changed to make these rates subject to the addition of the Fee.
This change does not apply to any other contracts.
SC, ECS, PSS, TSS – Project Bank AccountIn the SC and the main forms of subcontract (ECS, PSS and TSS) the form of Trust Deed and Joining Deed for secondary Option Y(UK)1 Project Bank Account has been removed as the Supplier or Subcontractor will become a member of a Project Bank Account created under a main contract.
A schedule of amendments is available for each contract on the NEC contract website www.neccontract.com.
January 2016 update on the ECI Clause
April 2013 Amendments to NEC3 since original 2005 Publication
- Adjudicators Contract
- Engineering and Construction Contract
- Engineering and Construction Subcontract
- Engineering and Construction Short Contract
- Engineering and Construction Short Subcontract
- Framework Contract
- ECC Option A
- ECC Option B
- ECC Option C
- ECC Option D
- ECC Option E
- ECC Option F
- Professional Services Contract
- Supply Contract
- Supply Short Contract
- Term Service Contract
- Term Service Short Contract
NEC3 2011 Amendments to the 2005 Publication
- Engineering and Construction Contract Option A
- Engineering and Construction Contract Option B
- Engineering and Construction Contract Option C
- Engineering and Construction Contract Option D
- Engineering and Construction Contract Option E
- Engineering and Construction Contract Option F
- Engineering and Construction Subcontract
- Engineering and Construction Short Contract
- Engineering and Construction Short Subcontract
- Professional Services Contract
- Term Service Contract
- Term Service Short Contract
NEC3 Amendments - June 2006
- NEC3 Engineering and Construction Contract (ECC)
- Amended pages of Contract
- NEC3 Engineering and Construction Contract Option A: Priced contract with activity schedule (ECC)
- Amended pages of Contract
- NEC3 Engineering and Construction Contract Option B: Priced Contract with bill of quantities (ECC)
- Amended pages of Contract
- NEC3 Engineering and Construction Contract Option C: Target contract with activity schedule (ECC)
- Amended pages of Contract
- NEC3 Engineering and Construction Contract Option D: Target contract with bill of quantities (ECC)
- Amended pages of Contract
- NEC3 Engineering and Construction Contract Option E: Cost reimbursable contract (ECC)
- Amended pages of Contract
- NEC3 Engineering and Construction Contract Option F: Management contract (ECC)
- Amended pages of Contract
- NEC3 Flow Charts for the Engineering and Construction Contract (ECC)
- Amended pages of Contract
- NEC3 Guidance Notes for the Engineering and Construction Contract (ECC)
- Amended pages of Contract
- NEC3 Engineering and Construction Subcontract (ECS)
- Amended pages of Contract
- NEC3 Term Service Contract (TSC)
- Amended pages of Contract
- NEC3 Guidance Notes for the Term Service Contract (TSC)
- Amended pages of Contract
- NEC3 Flow Charts for the Term Service Contract (TSC)
- Amended pages of Contract
- NEC3 Professional Services Contract (PSC)
- Amended pages of Contract
- NEC3 Guidance Notes for the Professional Services Contract (PSC)
- Amended pages of Contract
- NEC3: how to write the ECC Works information - erratum on Chapter 6, page 37