The National Science Foundation (NSF) is offering a grant opportunity titled "Sustaining Infrastructure for Biological Research," aimed at supporting the continued operation of existing research infrastructure that enhances contemporary biology. This program specifically focuses on sustaining critical research infrastructure, including cyberinfrastructure and biological living stocks, which are essential for a wide range of researchers in the biological sciences. With an estimated total program funding of $5 million and an expected three awards, proposals can be submitted at any time, and interested applicants can reach out to NSF grants.gov support at grantsgovsupport@nsf.gov for assistance. For more details, refer to NSF Publication 21-503 available at the provided URL.