The National Institutes of Health (NIH) has announced a funding opportunity for administrative supplements to existing NIH grants and cooperative agreements, allowing current recipients to request additional funding for unforeseen increased costs within the scope of their approved projects. Eligible applicants include a wide range of organizations such as higher education institutions, nonprofits, for-profits, and government entities, provided they hold an active parent award. This opportunity is crucial for supporting ongoing health-related research by addressing unexpected financial needs that arise during the project lifecycle. Interested parties must ensure compliance with submission guidelines and can contact the Division of Grants Policy at GrantsPolicy@od.nih.gov for further information; the application deadline is November 30, 2028.