Section 7 of the National Institute for Health and Care Excellence (Constitution and Functions) and the Health and Social Care Information Centre (Functions) Regulations 2013 requires integrated care boards (ICBs), NHS England and, with respect to their public health functions, local authorities to comply with the recommendations in this evaluation within 3 months of its date of publication. For people with an increased risk for progression to severe COVID‑19, as defined in section 5, this is 3 months after 29 March 2023. For people who are aged 70 years and over, or who have a body mass index (BMI) of 35 kg/m2 or more, diabetes or heart failure, the normal period of compliance has been extended to 15 months to 1 June 2025. This is because NHS England, on behalf of ICBs, submitted a funding variation request for this expanded population, which was accepted by NICE after a period of public consultation. NHS England's justification for the funding variation request is that ICBs will need time beyond the usual 3 month implementation period to put in place the necessary treatment pathways and ensure the necessary capacity, knowledge and expertise is in place to support equitable access for the expanded population.