((a)) ** .—** The Maritime Administrator may establish a program for the purpose of contracting with individuals as personal services contractors to provide services as adjunct professors at the Academy, if the Maritime Administrator determines that there is a need for adjunct professors and the need is not of permanent duration.

((b)) ** .—** Each contract under the program—

((1)) must be approved by the Maritime Administrator;

((2)) shall be for a duration, including options, of not to exceed one year unless the Maritime Administrator finds that exceptional circumstances justify an extension of up to one additional year; and

((3)) shall be subject to the availability of appropriations.