NEC early contractor involvement
NEC was first published in 1993 as the New Engineering Contract. It is a suite of construction contracts intended to promote partnering and collaboration between the contractor and client. It was developed as a reaction to other more traditional forms of construction contract which have been portrayed by some as adversarial. NEC is a division of Thomas Telford Ltd, the commercial arm of the Institution of Civil Engineers (ICE).
On 27 November 2015, at the Alliancing Code of Practice Launch at ICE's headquarters in London, it was announced that NEC would publish ‘Early Contractor Involvement’ (ECI) clauses for NEC contracts to help improve project collaboration. Ref ICE.
This move came in response to the increasing trend for early collaboration, which can be essential for projects using processes such as Building Information Modelling (BIM). ICE suggest that early contractor involvement '...supports improved team working, innovation and planning to deliver value for money'.
Previously, NEC projects often contracted design development and construction planning separately from detailed design and construction. The new clauses mean that a single NEC3 Engineering and Construction Contract (ECC) can be used for both stages where contractors are taking part in the design development and construction planning stage.
Peter Higgins, leader of the drafting team for the clauses, said, "This will allow the contractor to be appointed under a two-stage Engineering and Construction Contract (ECC) before details of what is to be constructed have been fully developed and priced.
"Two approaches to ECI are covered by the new clauses. The employer can engage the contractor to assist their consultant in designing the project, as well as to design specific elements. Following agreement of prices for the construction stage, the employer then instructs the contractor to deliver the works, including any outstanding design, under standard ECC Option C (target contract with activity schedule) terms.
"Alternatively, the employer can appoint the contractor to carry out the design with assistance from their consultant. The employer then instructs the contractor to deliver the works under standard ECC Option C or E (cost reimbursable contract) terms. If using Option E, the contractor can also be incentivised to provide a cost-effective design by sharing in the savings on the employer's budget, which includes other relevant costs incurred by the employer."
The clauses are available as a free download now from http://www.neccontract.com. NEC will also be releasing an advisory 'How To' guide to the clauses in 2016.
[edit] Related articles on Designing Buildings Wiki
- Atkins v Secretary of State for Transport.
- Collaborative practices.
- Construction contract.
- Contract conditions.
- Contractor's design portion.
- Defined cost.
- Delay damages.
- Early appointment / involvement.
- Early contractor involvement.
- FIDIC.
- Institution of Civil Engineers.
- JCT.
- Latham Report
- Management contract.
- NEC contract change management systems.
- NEC contracts - road development and management schemes.
- NEC3.
- Optimised contractor involvement.
- Period for reply.
- Procurement route.
Featured articles and news
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.






















