1. To be eligible to apply, students must be US citizens or green card holders.
  2. Be enrolled in a Ph.D. program and performing their thesis project related to environmental health sciences.
  3. Must have successfully completed at least the first year of their graduate program

Application Timeline

  1. Application details with the URL to submit the application are sent to Program Trainers in mid March. Please note that  application details are not sent to the students. It is the Trainers responsibility to forward the application materials to first year graduate students in their lab.
  2. Application deadline is in the mid of April.
  3. Program Interviews take place in the early May.
  4. Trainees who are selected are announced by the first week of June.

Application materials

  • The applicant’s biographical sketch or CV.
  • The mentor’s current NIH biosketch including other support
  • A concise plan (1-3 pages excluding references) describing the proposed research, its relevance to environmental health science and the applicant’s career goals.
  • A copy of graduate and undergraduate academic records.
  • Three letters of recommendation, one of which is from the PI supervising the trainee’s research.  The PI must include a statement of how the applicant’s project will contribute to the mission of NIEHS ( and how the PI will help the student achieve this goal. The PI must also indicate how many other trainees (graduate students and postdoctoral fellows) are currently in the laboratory. (If the PI is listed as trainee faculty on the current T32 training grant then s/he can upload the letter of recommendation on the application website.  If not, the letter should be forwarded to So Jung Yoon at
  • A statement from both the applicant and the mentor that if the applicant is awarded a fellowship, both the applicant and the mentor will accept and meet the expectations spelled out in the attached Letter of Agreement
  • A statement on how the applicant will address the program requirement for didactic training in mechanistic toxicology

Program Responsibilities

  • Provide documented completion of a course in scientific ethics or earn a certificate of completion in the UC Davis Office of Research RCR training program within the first year of appointment, and renew this training every two years up until the time of graduation from the PhD degree program
  • Participate in NIEHS T32 trainee chalk talks on the first Thursday of each month from 4:30 - 5:30 pm during the Fall, Winter and Spring quarters
  • Participate in one session scheduled Aug/Sep from 4:00 - 6:00 pm that will focus on rigor and reproducibility in research
  • Attend and participate in organizing the monthly NIEHS T32 seminar series in Environmental Health Sciences held on the third Thursday of each month during the Fall, Winter and Spring quarters
  • Present a summary of his/her research in poster presentation during the annual combined retreat of the UC Davis NIEHS T32 and UC Davis NIEHS P30 Environmental Health Sciences Center (EHSC)
  • Participate in the course "Emerging Concepts in Environmental Health Sciences" offered during one of the summer quarters