CID meaning

CID means a capital investment decision: the formal decision by a board or authorised committee to commit significant capital expenditure to a project or asset. In practice it is the “go/no‑go” point that follows appraisal and due diligence, authorises contract award and signing (for example construction, supply, services and financing agreements), and permits release of funds. It is a descriptive governance and project finance term rather than a statutory definition, and is sometimes used interchangeably with “final investment decision (FID)”. Key features include approval of the business case, risk allocation, procurement strategy, and funding structure, and confirmation that regulatory, planning and other consents can be satisfied. Its timing often aligns with contract award or financial close and may trigger binding obligations, long‑lead orders, disclosure for listed companies, and conditions precedent under finance documents. Usage is broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland, though guidance frameworks differ: UK public bodies follow HM Treasury’s Green Book (with the Scottish Public Finance Manual and Northern Ireland DoF guidance), while Irish bodies follow the Public Spending Code. In PPP/PFI and major infrastructure, the CID marks progression to contract signature and implementation.