All regular appointments, including promotional appointments, shall be for a probationary period of not less than one year, except that as to any class of position, the rules may provide for an extension of the period for not more than an additional one year. During the probationary period, the employee may be rejected at any time without right of appeal or hearing.
('61 Code, § 2-2.309) (Ord. 10 C.S., passed 9-20-61; Am. Ord. 58 C.S., passed 2-5-64)