18151. The oath required by this chapter shall be taken and subscribed by:(a) Every person who is appointed to a State position not in the State civil service and not otherwise so required by law, within 30 days of the date of appointment; and(b) Every person who has not previously taken and subscribed the oath and who is employed in a permanent position in the State civil service where the employment continues for 30 days or more, within the first 30 days of his employment. (Added by Stats. 1945, Ch. 123.)
California Legal Code