NEC4: Design Build and Operate Contract
The NEC4 Design Build and Operate Contract (DBOC) is for the appointment of a single contractor to design, build and operate or maintain (but not fund) a client’s asset over a defined service period. It can also be used for situations where a client wants to have an existing asset operated by the contractor while it is being upgraded or extended.
The DBOC core clauses enable the client to create any price-based or cost-based payment strategy, with a mix of prices and defined costs in the price list. A performance table is used to incentivise the contractor to achieve or better the targets set for the operational requirements.
The document contains everything you need to prepare, tender and manage an NEC4 DBOC, including core clauses, secondary Options and forms for the cost schedule and contract data.
Background
The DBOC is part of the NEC4 suite of collaborative, flexible and clearly written contracts for built environment procurement. The suite has a global track record for delivering all kinds and sizes of building and infrastructure projects and services on time, on budget and to the highest environmental and quality standards.
As with all NEC4 contracts, the parties to a DBOC are required to act in a ‘spirit of mutual trust and co-operation’ and give early warnings of anything that could affect time, cost, asset operation or service effectiveness so it can be mitigated without delay.
Change is dealt with by a fast and fair compensation event process which, together with a continually updated and agreed plan, ensures there are no surprises.
Core Clauses
- General
- The Contractor’s main responsibilities
- Time
- Quality management
- Payment
- Compensation events
- Use of equipment, Plant and Materials
- Liabilities and insurance
- Termination
Resolving and Avoiding Disputes
- Option W1
- Option W2
Option Clauses
- Option X3: Multiple currencies
- Option X4: Ultimate holding company guarantee
- Option X8: Undertakings to the Client or Others
- Option X9: Transfer of rights
- Option X10: Information modelling
- Option X13: Performance bond
- Option X14: Advanced payment to the Contractor
- Option X18: Limitation of liability
- Option X23: Extending the Service Period
Options X1, X2, X5–X7, X11–X12, X15–X17 and X19–X22 are not used.
- Option Y(UK)2: The Housing Grants, Construction and Regeneration Act 1996
- Option Y(UK)3: The Contracts (Rights of Third Parties) Act 1999
- Option Z: Additional conditions of contract
- Schedule of Cost Components
- Contract Data
- Part one – Data provided by the Client
- Part two – Data provided by the Contractor
- Index
NEC4 Y Clauses - February 2023
Y Northern Ireland Clauses
NEC4 Y Clauses - February 2021
NEC is supporting the use of its contracts in Australia and Ireland by publishing secondary option Y clauses.
Y Australia Clauses - Y(Aus) Clauses
- NEC4 Y(Aus) - Design Build Operate Contract
- NEC4 Y(Aus) - Flowcharts for all contracts
- Download all the Y Australia Clauses
Y Ireland Clauses - Y(Ire) Clauses
Users should note that the NEC Forms of Contract are protected by copyright and may not be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical or photocopying, recording or otherwise, without the prior permission of the copyright owner. However, Contract Data forms may be reproduced for the purpose of obtaining tenders, awarding and administering contracts.
Likewise, plagiarising any copyrighted document is illegal. For users seeking to prepare their own bespoke contracts based on the NEC Forms of Contract, please contact NEC at info@neccontract.com to discuss and obtain a copyright licence.
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Product code: L48020-H
ISBN:
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ISBN:
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ISBN:
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