Section 1639.8 - Statement of reason for denial(a) Denial of a claim for a ministerial student deferment by a board must be accompanied by a statement specifying the reason(s) for such denial as prescribed in §§ 1633.9 , 1651.4 and 1653.3 of this chapter. The reason(s) must in turn, be supported by evidence in the registrant's file.(b) If a board's denial is based on statements by the registrant or his witnesses at a personal appearance, this must be fully explained in the statement of reasons accompanying the denial.