The Department of Health and Human Services, specifically the National Institutes of Health, is seeking proposals for Small Business Innovation Research (SBIR) contract proposals. The solicitation is from the Advanced Research Projects Agency for Health (ARPA-H). The ARPA-H SBIR program aims to encourage scientific and technical innovation in areas relevant to health outcomes for all Americans. The program is looking for proposals that can catalyze health breakthroughs that cannot be easily achieved through traditional research or commercial activity. The solicitation allows for Direct to Phase II and Fast-Track proposals. Phase I focuses on determining the feasibility and commercial merit of the proposed research, while Phase II aims to further develop the research efforts. Phase III refers to work that extends or completes prior SBIR/STTR funding agreements but is funded by sources other than the SBIR/STTR programs. Direct to Phase II proposals are accepted for projects that have already demonstrated feasibility, while Fast Track proposals allow for streamlined processes and potential funding continuity between Phase I and Phase II. The solicitation is closed, and more information can be found on the grants.gov website.