; (B) are citizens of the United States; and (C) the Secretary determines are fit to hold the position in the Reserve Service, including with respect to health, character, knowledge, and ability. (2) Service An individual who is employed or reemployed under this section may be employed on a full-time or part-time basis. The period of such employment or reemployment may not exceed one year for each assignment for which the individual is called into service. (3) Pay (A) In general Except as provided in subparagraphs (B) and (C), an individual who is a member of the Reserve Service shall not be compensated except for periods during which the individual performs active service in the Reserve Service. For any period during which such an individual is not performing such service, the individual shall be an employee of the Department in a non-duty, non-pay status. (B) Coordination and training Except as specifically authorized by the Secretary, in addition to compensation provided under subparagraph (A), an individual who is a member of the Reserve Service may be compensated for— (i) not more than 80 hours per year for coordination activities with the Reserve Service