BIO Research Experience for Undergraduates Sites (BIO REU Sites)

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Important Information for Proposers

A revised version of the NSF Proposal & Award Policies & Procedures Guide (PAPPG) (NSF 22-1), is effective for proposals submitted, or due, on or after October 4, 2021. Please be advised that, depending on the specified due date, the guidelines contained in NSF 22-1 may apply to proposals submitted in response to this funding opportunity.


The Directorate for Biological Sciences (BIO) participates in the NSF-wide REU program. The Division for Biological Infrastructure (DBI) manages the REU Site program for BIO.

The NSF-wide Research Experiences for Undergraduates (REU) solicitation governs the overall competition. The following clarifications/explanations are specifically for REU Site proposals submitted to the BIO/DBI.   

  • A BIO-funded REU Site hosts on average 10 students for a summer program lasting approximately 10 weeks long.
  • In BIO, at least 50% of participants must come from outside the host institution.
  • Stipend, meal allowance and travel to and from the REU site must be budgeted. A small research allowance of $1,000-2,000 per student can be added to Participant Support costs.
  • Travel to conferences to present student research should NOT be included in the budget. Travel funds to students are provided through a Travel Award system administered in the website.
  • Over the past several years, Site awards to institutions have the predominant costs under the Participant Support Costs (PSC); typically, PSC constitute 90% or more of the Total Direct Costs.
  • Most awards provide 3 years of funding. Proposers wanting to request more than 3 years of support should contact the Program Directors.
  • Assessment of BIO-funded REU Sites is done using the Student Assessment of Their Learning Gains Undergraduate Research Student Self-Assessment (SALG URSSA) tool (see the website for details).

Program Contacts

Sally E. O'Connor (703) 292-4552 BIO/DBI