10 U.S.C. § 311

(a) Authority To Enter Into International Exchange Agreements .— (1) The Secretary of Defense may enter into international defense personnel exchange agreements. Any exchange of personnel under such an agreement is subject to paragraph (3). (2) For purposes of this section, an international defense personnel exchange agreement is an agreement with the government of a friendly foreign country or international or regional security organization for the reciprocal or non-reciprocal exchange of— (A) members of the armed forces and civilian personnel of the Department of Defense; and (B) military and civilian personnel of the defense or security ministry of that foreign government or international or regional security organization. (3) An exchange of personnel under an international defense personnel exchange agreement under this section may only be made with the concurrence of the Secretary of State to the extent the exchange is with either of the following: (A) A non-defense security ministry of a foreign government. (B) An international or regional security organization. (b) Assignment of Personnel .— (1) Pursuant to an international defense personnel exchange agreement, personnel of the defense ministry of a foreign government may be assigned to positions in the Department of Defense and personnel of the Department of Defense may be assigned to positions in the defense ministry of such foreign government. Positions to which exchanged personnel are assigned may include positions of instructors. (2) An agreement for the exchange of personnel engaged in research and development activities may provide for assignment of Department of Defense personnel to positions in private industry that support the defense ministry of the host foreign government, subject to the concurrence of the Secretary of State. (3) An individual may not be assigned to a position pursuant to an international defense personnel exchange agreement unless the assignment is acceptable to both governments. (c) Reciprocity of Personnel Qualifications Required .— In the case of an international defense personnel exchange agreement that provides for reciprocal exchanges, each government shall be required to provide personnel with qualifications, training, and skills that are essentially equal to those of the personnel provided by the other government. (d) Payment of Personnel Costs .— (1) Each government shall pay the salary, per diem, cost of living, travel costs, cost of language or other training, and other costs for its own personnel in accordance with the applicable laws and regulations of such government. (2) Paragraph (1) does not apply to the following costs: (A) The cost of temporary duty directed by the host government. (B) The cost of training programs conducted to familiarize, orient, or certify exchanged personnel regarding unique aspects of the assignments of the exchanged personnel. (C) Costs incident to the use of the facilities of the host government in the performance of assigned duties. (e) Prohibited Conditions .— No personnel exchanged pursuant to an agreement under this section may take or be required to take an oath of allegiance to the host country or to hold an official capacity in the government of such country. (f) Relationship to Other Authority .— The requirements in subsections (c) and (d) shall apply in the exercise of any authority of the Secretaries of the military departments to enter into an agreement with the government of a foreign country to provide for the exchange of members of the armed forces and military personnel of the defense or security ministry of that foreign country. The Secretary of Defense may prescribe regulations for the application of such subsections in the exercise of such authority.