As USAID’s flagship health initiative in Timor-Leste, the USAID Health System Sustainability Activity made significant contributions over the past four years, strengthening Timor-Leste's health system in financing, governance, and service delivery. Key achievements include the advancement of health system governance, establishment of a Health Financing Unit (HFU) to oversee the Timor-Leste Health Financing Strategy, and creation of the Health Management Information System (HMIS) Technical Working Group to ensure ongoing data quality improvement.