An individual is eligible to receive a fellowship if the individual—

(a) Is enrolled at an institution of higher education in the program of study leading to a doctoral degree, and is not studying for a religious vocation, in the academic field for which the fellowship is awarded;

(b) Meets the eligibility requirements established by the Fellowship Board;

(c) Is not ineligible to receive assistance under 34 CFR 75.60, as added on July 8, 1992 (57 FR 30328, 30337); and

(d)(1) Is pursuing a doctoral degree that will not lead to an academic career and is—

(i) A citizen or national of the United States;

(ii) A permanent resident of the United States;

(iii) In the United States for other than a temporary purpose and intends to become a permanent resident; or

(iv) A citizen of any one of the Freely Associated States; or

(2) Is pursuing a doctoral degree that will lead to an academic career and is a citizen of the United States.