COL meaning

In nuclear project work, COL means a US Nuclear Regulatory Commission Combined License that authorises construction of a new reactor and, once pre-operational conditions are met, its operation. It is a defined US regulatory instrument under 10 CFR Part 52, combining what were historically separate construction permits and operating licences. A COL typically incorporates design certification references and site-specific Inspections, Tests, Analyses and Acceptance Criteria (ITAAC) that must be satisfied before fuel load. For UK and Irish practitioners, COL is encountered in cross-border M&A, project finance, due diligence and contracts involving US new nuclear build. It does not exist in UK or Irish law. There is no single UK equivalent: new build requires a nuclear site licence from the Office for Nuclear Regulation, a Development Consent Order (England and Wales) or other planning consent, environmental permits (e.g., Environment Agency/SEPA) and, at design level, participation in the Generic Design Assessment. Ireland and Northern Ireland have no nuclear generation; Ireland prohibits nuclear electricity generation. Usage of COL is consistent across UK jurisdictions as a descriptive reference to the US regime; the underlying legal effect derives solely from US federal law and NRC practice.