; and (II) has a climate that can accommodate both primary and advanced flight training activity at least 75 percent of the year; and (D) at which the Administrator determines that— (i) there will be at least 1 student enrolled in the program; and (ii) the provisions of this section are otherwise satisfied. (3) Limitations in connection with particular institutions The program may not be established or maintained at an institution unless— (A) the senior commissioned officer or employee of the Corps who is assigned as an advisor to the program at that institution is given the academic rank of adjunct professor; and (B) the institution fulfills the terms of its agreement with the Administrator. (4) Membership in connection with status as student At institutions at which the program is established, the membership of students in the program shall be elective, as provided by State law or the authorities of the institution concerned. (c) Membership (1) Eligibility To be eligible for membership in the program an individual must— (A) be a student at an institution at which the program is established; (B) be a citizen of the United States; (C) contract in writing, with the consent of a parent or guardian if a minor, with the Administrator, to— (i) accept an appointment, if offered, as a commissioned officer in the Corps; and (ii) to serve in the Corps for not fewer than 4 years; (D) enroll in— (i) a 4-year baccalaureate program of professional flight and piloting instruction; and (ii) other training or education, including basic officer training, which is prescribed by the Administrator as meeting the preliminary requirement for admission to the Corps