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This wording is not new. It mirrors the language used in the Health and Social Care Act 2012, which underpins the adult consistent identifier. The intention here is to provide reassurance that any identifier introduced for children will follow the same principles as those already established, such as the NHS number or national insurance number. In short, this is about consistency, familiarity and interoperability, and ensuring that the system we build for children aligns with existing frameworks and supports safe and effective information sharing.