This comprehensive national roadmap presents Iran’s multi-year plan to strengthen WASH services in healthcare facilities. It follows WHO/UNICEF guidance and builds on the 2021 national WASH situational analysis. Developed through stakeholder consultation and technical working groups, the roadmap includes national objectives, regulatory review, costing of environmental health services using UNC’s toolkit, and defines short- and medium-term targets to improve quality of care, IPC, waste management, and access to WASH for vulnerable populations.