Oregon Revised Statutes Public Health and Safety § 446.435

(1) Any structure designed for and occupied as a single family residence in which no more than two sleeping rooms are provided on a daily or weekly basis for the use of no more than a total of six travelers or transients at any one time for a charge or fee paid or to be paid for the rental or use of the facilities; or

(2) Any temporary camping sites used solely and incidentally in the course of backpacking, hiking, horseback packing, canoeing, rafting or other such expedition, unless such expedition is a part of an organizational camp program.