Appointments shall be for the term of four (4) years. If a vacancy occurs otherwise than by expiration of term, it shall be filled by appointment for the unexpired portion of the term. (Ord. 1030 § 2(2), 2018; Ord. 748 § 2, 1987; Ord. 740 § 2, 1986; Ord. 646 § 2, 1980; Ord. 553 § 2, 1976; Ord. 394 § 2, 1970; Ord. 290 § 2, 1962)