Oregon Revised Statutes Revenue and Taxation § 305.065

The Director of the Department of Revenue, with the approval of the Governor, may designate a deputy director, to serve at the pleasure of the director, with full authority to act for the director, but subject to the control of the director. The deputy director shall be skilled and expert in matters of taxation or financial administration and shall devote the entire time of the deputy director to the performance of the duties of the deputy director in the department. The designation of a deputy director shall be by written order filed with the Secretary of State.