The claim is strongly supported by official government sources. On 6 June 2025, the Department of Health and Social Care and NHS England published the Urgent and Emergency Care Plan 2025–26, backed by what the government's own press release describes as "nearly £450 million investment to expand urgent and emergency care facilities." The plan includes around 40 new same-day emergency care and urgent treatment centres, up to 15 mental health crisis assessment centres, almost 500 new ambulances, and various other measures. The only minor discrepancy is that the official sources consistently say "nearly £450 million" rather than exactly £450 million. The NHS England long-read page breaks down the components as £250 million for SDEC/UTC expansion, £75 million for mental health inpatient capacity, £26 million for crisis assessment centres, £20 million for digital care records, and other allocations, totalling "over £370 million" of capital investment plus additional revenue funding to reach "nearly £450 million." This rounding is immaterial to the core claim — the government did provide approximately £450 million for this purpose. Sources: - GOV.UK, Department of Health and Social Care / NHS England, "New ambulances and faster emergency care for patients next winter" (6 June 2025): https://www.gov.uk/government/news/new-ambulances-and-faster-emergency-care-for-patients-next-winter - NHS England, "New ambulances and faster emergency care for patients next winter" (6 June 2025): https://www.england.nhs.uk/2025/06/new-ambulances-and-faster-emergency-care-for-patients-next-winter/ - NHS England, "Urgent and emergency care plan 2025/26" (long read): https://www.england.nhs.uk/long-read/urgent-and-emergency-care-plan-2025-26/