Department to administer and enforce laws; enforcement districts; branch offices. The Department of Revenue shall administer and enforce the tax imposed by any law imposing tax upon or measured by net income. For this purpose the department may divide the state into districts. In each district a branch office may be established. The department may, from time to time, change the limits of such districts. [1957 c.632 §27 (enacted in lieu of 316.705 and 317.505)]

ORS 314.805 — under Chapter 314.