A student is eligible to receive a fellowship if the student—

(a)(1) Is a citizen or national of the United States; or

(2) Is a permanent resident of the United States;

(b) Is accepted for enrollment or is enrolled—

(1) In an institution receiving an allocation of fellowships; and

(2) In a program that combines modern foreign language training with—

(i) Area or international studies; or

(ii) Research and training in the international aspects of professional and other fields of study;

(c) Shows potential for high academic achievement based on such indices as grade point average, class ranking, or similar measures that the institution may determine;

(d) Is enrolled in a program of modern foreign language training in a language for which the institution has developed or is developing performance-based instruction;

(e) In the case of an undergraduate student, is in the intermediate or advanced study of a less commonly taught language; or

(f) In the case of a graduate student, is engaged in—

(1) Predissertation level study;

(2) Preparation for dissertation research;

(3) Dissertation research abroad; or

(4) Dissertation writing.