NIEHS Investigator-Initiated Research Grants

NIEHS R01 Research Project Grant

Supports environmental health research grants at United States universities through broad investigator initiatives.

The National Institute of Environmental Health Sciences (NIEHS) R01 Research Project Grant funds hypothesis-driven research at U.S. academic and research institutions across the full scope of environmental health sciences, including chemical exposures, hazardous substances, occupational health, children's environmental health, and PFAS-related research. NIEHS is a component of the National Institutes of Health and provides the bulk of its extramural funding through the standard R01 mechanism, with applications reviewed by NIEHS-specific study sections using the same peer-review process as other NIH institutes. Awards follow standard NIH omnibus submission cycles, with deadlines typically in February, June, and October each year.

Eligible applicants include U.S. universities, nonprofit research organizations, and public institutions. For-profit companies cannot receive R01 awards and should apply to the NIEHS SBIR/STTR program instead. Individual investigators apply through their home institution using the standard NIH R01 application. Direct-cost caps are set by standard NIH policy unless otherwise specified in the funding opportunity; most NIEHS R01s fall under the $500,000/year modular threshold. NIEHS also accepts investigator-initiated R01 submissions that are not tied to a specific RFA, reviewed through standard study sections.

A named R01 variant, the Outstanding New Environmental Scientist (ONES) Award, is available exclusively for Early-Stage Investigators and provides up to $250,000 per year in direct costs (up to $400,000 with justification) plus an additional $250,000 in career-enhancement funds distributed over a five-year project period. Applicants pursuing the ONES variant must hold ESI status — no prior independent R01 as PI. For general R01 applicants, NIEHS program officers recommend contacting the relevant division before submission to confirm scientific alignment. Climate-health-specific R01 aims carry elevated risk of rejection under 2026 NIH policy shifts.