Regional National Health Service teams are working with several integrated care boards to explore how they are planning to implement different aspects of the NHS Vaccination Strategy. These demonstrator systems are: - Suffolk and North East Essex; - North West London; - South West London; - Birmingham and Solihull; - Humber and North Yorkshire; - North East and North Cumbria; - Lancashire and South Cumbria; - Cheshire and Merseyside; - Surrey Heartlands; - Kent and Medway; - Bristol, North Somerset, and South Gloucestershire; and - Gloucestershire. The demonstrator systems are currently identifying the elements of the vaccination strategy on which they would like to focus. These include delivering innovative outreach services to target underserved communities, and exploring the expansion of successful flexible seasonal workforce management systems across all immunisations delivered by the NHS. As each demonstrator system develops and finalises its plans, we will support the system in evaluating the impact of its activities, and share the learning across other systems.