The Commission, in accordance with the procedure set forth in Chapter 150B of the N.C. Gen. Stat., may suspend or revoke a certificate or may issue a written reprimand to an operator if it finds that the operator has practiced fraud or deception; that reasonable care, judgment, or the application of his knowledge or ability was not used in the performance of his duties; or that the operator is incompetent or unable to properly perform his duties. (1969, c. 1059, s. 3; 1973, c. 1331, s. 3; 1979, c. 554, s. 2; 1987, c. 827, s. 1; 1991, c. 623, ss. 1, 8.)