This ISO seeks solution summary and proposal submissions for projects that fall within the scope of the ARPA-H mission Resilient Systems Office (RSO). RSO’s interest areas will address systemic challenges across the healthcare and public health landscape by investing in cutting-edge technologies that address long-standing gaps in the quality, efficacy, and consistent availability of care. Solution summary submissions must be submitted to: https://solutions.arpa-h.gov Questions must be submitted to: https://solutions.arpa-h.gov/Ask-A-Question/ Proposal submission should be submitted to: https://solutions.arpa-h.gov/Submit-Proposal/ Amendment 3 is effective immediately; updates were made to proposal documents including administrative, national policy requirements, cost proposal documentation, and intellectual property data assertions. See attachments for details.