Section 53
SEC. 53. Young men shall be required to register for military training in the Army in the calendar year in which they will become twenty years of age. This class of training shall be known as trainee instruction and shall be given for such periods, at such times and under such regulations as the President may from time to time prescribe. Except for those trainees selected for duty with elements of the Regular Force, the period of trainee instructions shall not exceed five and one-half months. In no case shall the period of trainee instruction be extended beyond, twelve months except with the specific consent of the trainee.