Planning advice for contractors

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 did not arrive fully formed. It evolved as a deliberate response to the failures of the contracts that preceded it, and every clause in the current NEC4 suite carries the imprint of a specific problem that JCT and ICE could not solve. The history is not background to contemporary NEC practice. It is the explanation of why the controls matter, what the contract was designed to prevent, and how contractors who understand the evolution administer the contract more effectivel

Every contractor running an NEC4 contract loses some compensation event entitlement that the contract would otherwise have delivered. The amount lost is not random. It is the predictable consequence of seven specific failure modes that recur across contractor types, contract sizes and sectors. Each is preventable through operational discipline.