The National Science Foundation (NSF) is offering a federal grant opportunity titled "Combustion and Fire Systems," aimed at advancing knowledge in clean energy, climate change mitigation, and public safety. The program seeks proposals that create fundamental scientific knowledge to enhance combustion applications and fire safety, focusing on areas such as basic combustion science, clean energy technologies, fire prevention, and turbulence-chemistry interactions. With an estimated total program funding of $4,654,000 and no cost-sharing requirement, proposals can be submitted at any time, and interested applicants are encouraged to contact the NSF grants.gov support at grantsgovsupport@nsf.gov for assistance. For more details, visit the NSF program description at http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=506075.