Defined terms
Keep the capital initials shown, without italics.
Identified expressions
Use italics. Named roles can also have capitals.
Read the whole expression
The same words can appear in different forms. The clause determines which applies.
A capital at the start of a sentence or heading does not make an expression a defined term. Named items can also have capitals without a numbered definition.
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Edition and scope.
This guide covers terminology in the NEC4 Engineering and Construction Contract, June 2017 edition with January 2023 amendments. It brings together 158 contextual forms in 137 entries.
The explanations are practical commentary. Refer to your executed contract for the full definitions and obligations, including the selected options and amendments. Country-specific Y clauses and other NEC forms require their own checks.
This guide is prepared and published independently by Concordia Resolution. NEC is a registered trade mark of Thomas Telford Ltd.