Eligibility for the GAANN fellowships is limited to US citizens and permanent residents.

Applicants must have a BS or MS degree in Civil Engineering or a closely related field (e.g., systems engineering, environmental biotechnology, mechanical engineering), an excellent academic record, strong interpersonal skills, and a strong interest in working on inter disciplinary projects intersecting at least two of the following domains: water, energy, environmental, transportation, built facilities and geographic information systems.

More information on the  GAANN can be found at http://www.ed.gov/offices/OPE/HEP/iegps/gaann.html