Insights

Practical notes on assessing NEC compensation events — float ownership, the clause 61.3 time bar, Defined Cost under the Options, and what a good CE assessment actually looks like. Written by people who have done the job.

Risk Allowances in Compensation Event Quotations: What NEC Allows and How to Price It

What NEC3 clause 63.6 and NEC4 clause 63.8 allow for risk in a compensation event quotation, how to price an allowance, and how to assess one.

10 min read · Reviewed October 2026

The Project Manager's Own Assessment: NEC Clause 64 Explained

When an NEC Project Manager can assess a compensation event, the rules they must follow, the deadline, and what contractors should do with the result.

12 min read · Reviewed October 2026

How to Substantiate a Compensation Event: A Step-by-Step Guide

A step-by-step guide to substantiating an NEC compensation event: entitlement, the baseline, Defined Cost, the programme, preliminaries and evidence.

23 min read · Reviewed October 2026

Deemed Acceptance Under NEC: How Silence Accepts a Compensation Event

How a Project Manager's silence can accept an NEC compensation event quotation in full: the three mechanisms, the periods, and how both sides manage them.

17 min read · Reviewed October 2026

The Eight-Week Time Bar: NEC Clause 61.3 in Practice

How the NEC compensation event time bar works under clause 61.3, which events it catches, what 'becoming aware' means, and how registers fail.

15 min read · Reviewed September 2026

The Complete Guide to NEC Compensation Events

NEC3 and NEC4 compensation events explained end to end: the events in clause 60.1, notification, quotations, assessment, deadlines and the main Options.

31 min read · Reviewed September 2026