Eligible applicants for Hertz Fellowships must be students of the applied physical, biological and engineering sciences who are citizens or permanent residents of the United States of America, and who are willing to morally commit to make their skills available to the United States in time of national emergency. College seniors wishing to pursue the Ph.D. degree in any of the fields of particular interest to the Foundation, as well as graduate students already in the process of doing so, may apply.

https://www.hertzfoundation.org/