Oregon Revised Statutes Public Health and Safety § 446.100

(1) A person may not:

(2) The Director of the Department of Consumer and Business Services shall adopt rules pursuant to the rulemaking provisions of ORS chapter 183 specifying minimum distances between adjacent manufactured dwellings and between manufactured dwellings and other structures. In adopting these rules, the director shall take into consideration the standards established by the National Fire Protection Association and standards recommended by the State Fire Marshal.

(3) Except as provided in this subsection, the rules adopted by the director under subsection (2) of this section must provide for at least 10 feet of space between manufactured dwellings. The director may adopt a rule allowing less than 10 feet of space between manufactured dwellings that are separated by a one-hour fire-resistive wall. A standard established by the director for a one-hour fire-resistive wall separating manufactured dwellings must be at least as stringent as the equivalent standard, if any, for a fire-resistive wall in a two family dwelling under the Low-Rise Residential Dwelling Code.