The National Institutes of Health (NIH) is offering administrative supplements to existing NIH grants and cooperative agreements to address unforeseen cost increases within the scope of approved awards. These supplements aim to support research projects that may require additional funding due to unexpected expenses, while ensuring alignment with NIH mission goals. Eligible applicants include a diverse range of organizations such as higher education institutions, nonprofits, for-profit entities, and tribal governments. Applications must be submitted electronically via Grants.gov and will undergo an administrative review focusing on budget justification and potential impact on the parent award. The opportunity is open until January 24, 2025, and interested parties can contact the NIH OER Webmaster at FBOWebmaster@OD.NIH.GOV for assistance or further information.