The backsliding of immunization coverage during the COVID-19 pandemic, combined with delayed catch-up efforts since 2020 has resulted in a large and growing immunity gap. There is an urgent need to close this gap, and enable millions of missed children to be vaccinated, thereby curtailing the impacts that are already apparent. The Essential Immunization Recovery Plan sets out a path to getting immunization back on track, framed by three key approaches – Catch-Up, Restore and Strengthen. This document serves as the joint strategic description of this coordinated effort by WHO, UNICEF, and Gavi, the Vaccine Alliance, along with the Immunization Agenda 2030 (IA2030) Partnership, to support countries to plan and implement intensified efforts to bolster immunization programmes in 2023 and beyond.