Box one: the contracts - NEC4: Engineering and Construction Contract -- NEC4: Engineering and Construction Contract Option A: priced contract with activity schedule -- NEC4: Engineering and Construction Contract Option B: priced contract with bill of quantities -- NEC4: Engineering and Construction Contract Option C: target contract with activity schedule -- NEC4: Engineering and Construction Contract Option D: target contract with bill of quantities -- NEC4: Engineering and Construction Contract Option E: cost reimbursable contract -- NEC4: Engineering and Construction Contract Option F: management contract -- NEC4: Engineering and Construction Subcontract -- NEC4: Engineering and Construction Short Contract -- NEC4: Engineering and Construction Short Subcontract -- NEC4: Professional Service Contract -- NEC4: Professional Service Subcontract -- NEC4: Professional Service Short Contract -- NEC4: Term Service Contract -- NEC4: Term Service Subcontract -- NEC4: Term Service Short Contract -- NEC4: Design Build and Operate Contract -- NEC4: Supply Contract -- NEC4: Supply Short Contract -- NEC4: Dispute Resolution Service Contract -- NEC4: Framework Contract

Box two: user guides - NEC4: Establishing a Procurement and Contract Strategy -- NEC4: Preparing an Engineering and Construction Contract -- NEC4: Preparing an Engineering and Construction Short Contract -- NEC4: Preparing a Professional Service Contract -- NEC4: Preparing a Professional Service Short Contract -- NEC4: Preparing a Term Service Contract -- NEC4: Preparing a Term Service Short Contract -- NEC4: Preparing a Design Build and Operate Contract -- NEC4: Preparing a Supply Contract -- NEC4: Preparing a Supply Short Contract -- NEC4: Selecting a Supplier -- NEC4: Managing an Engineering and Construction Contract -- NEC4: Managing an Engineering and Construction Short Contract -- NEC4: Managing a Professional Service Contract -- NEC4: Managing a Professional Service Short Contract -- NEC4: Managing a Term Service Contract -- NEC4: Managing a Term Service Short Contract -- NEC4: Managing a Design Build and Operate Contract -- NEC4: Managing a Supply Contract -- NEC4: Managing a Supply Short Contract -- NEC4: Preparing and Managing a Dispute Resolution Service Contract -- NEC4: Preparing and Managing a Framework Contract.

NEC4 Suite of Contracts now contains updates to all of the contracts and an added NEC3 Design Build Operate Contract (DBO) reflecting the demand for contracts to extend into the operational phase. NEC4 uses clear and professional language to promote fair dealing, greater certainty and to help prevent litigation, even on the most complex and high-risk projects. The contracts were developed to enable best practice, support flexibility and streamline processes, to deliver real value.

Supersedes third edition (ISBN 0727733826).