NEC3: Engineering and Construction Contract Option B: priced contract with bill of quantities

Option B is a priced contract with a bill of quantities where the risk of carrying out the work at the agreed prices being is borne by the contractor. This document contains all the core and secondary option clauses, the shorter schedule of cost components, and contract data, relevant to an option B contract.
 
OGC endorsement of NEC3;
 
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.

Contents

Schedule of options
Core clauses

• 1 General
• 2 The Contractor’s main responsibilities
• 3 Time
• 4 Testing and Defects
• 5 Payment
• 6 Compensation events
• 7 Title
• 8 Risks and insurance
• 9 Termination

Dispute resolution W

• Option W1
• Option W2

Secondary option clauses

• X1 Price adjustment for inflation
• X2 Changes in the law
• X3 Multiple currencies
• X4 Parent company guarantee
• X5 Sectional Completion
• X6 Bonus for early Completion
• X7 Delay damages
• X12 Partnering
• X13 Performance bond
• X14 Advanced payment to the Contractor
• X15 Limitation of the Contractor’s liability for his design to reasonable skill and care
• X16 Retention
• X17 Low performance damages
• X18 Limitation of liability
• Y(UK)2 The Housing Grants, Construction and Regeneration Act 1996
• Y(UK)3 The Contracts (Rights of Third Parties) Act 1999
• Z Additional conditions of subcontract
Note Options X8 to X11 and Y(UK)1 are not used
 
Schedule of Cost Components
Contract Data
Index

This edition of the NEC (NEC3) complies fully with the AEC principles. OGC recommends the use of NEC3 by public sector construction procurers on their construction projects