Most contractors treat clause 31 as a procedural hurdle to clear at the start of the job. Submit the programme, wait for acceptance, move on. That approach quietly hands commercial control to the project manager. This article explains what the accepted programme actually protects, how the deemed acceptance mechanism works, and why a programme that was accepted at mobilisation provides almost no commercial protection by month six.

Where multiple compensation events arise under NEC4, separate assessment is usually the safer route. This guide explains the accepted programme, the dividing date, and why one blended impact programme can weaken traceability.

Clause 64 is not a procedural fallback. It is the contract's switching mechanism for commercial control of valuation. When the contractor submits compliant quotations on time with current programme information, the contractor controls valuation. When the contractor fails to meet any of the four conditions, the contract switches that control to the project manager, with consequences that typically reduce entitlement by thirty to sixty percent.

Most contractors ask how to get NEC4 compensation event quotations agreed. The question is the wrong one. The strongest contractors ask what makes a quotation acceptable to a project manager who wants to accept it and what makes a quotation rejectable by a project manager looking for reasons to reject. The first optimises for completeness. The second optimises for acceptability. The two are not the same.

NEC Whitepaper: “The History of NEC – Evolving to be the world’s favourite procurement suite” The NEC story is not just “contract history”; it explains why NEC projects succeed or fail in practice. The NEC whitepaper traces the suite from its origins in the late 1980s to the current NEC4 era, highlighting the consistent theme: NEC is designed to stimulate good project management, not merely allocate legal risk after the event. First, NEC is explicit that collaboration is “har

Contractors lose entitlement on NEC4 Compensation Events when the process is loose: missed 8-week time bar, wrong Accepted Programme at the dividing date, weak notices and quotations with no programme story. Here are 7 pitfalls and the controls that fix them.

If you are working under the NEC4 Engineering and Construction Contract (ECC), your entitlement to time on a compensation event is only as good as the way you assess it. Most contractors do not lose time because the event was weak. They lose it because the programme evidence is unclear, the “dividing date” baseline is wrong, or the delay model mixes the compensation event with unrelated project noise. The NEC approach is deliberately prospective. It is meant to keep commerci

A practical guide to NEC4 delivery for subcontractors: build accepted programmes, run early warnings properly, manage compensation events to timescales, and keep evidence audit-ready.