Oregon Revised Statutes Public Health and Safety § 455.449

(1) All buildings or portions thereof which are determined after inspection by a building inspector or a representative of the Department of Consumer and Business Services to be in unsafe condition as a result of earthquake damage may be declared to be a public nuisance and shall be abated by repair, rehabilitation, demolition or removal in accordance with the procedure specified by rules adopted by the agency.

(2) Any building declared to be in unsafe condition under subsection (1) of this section shall be made to comply with one of the following:

(3) If the building or structure is in such condition as to make it immediately dangerous to the life, limb, property or safety of the public or its occupants, the Department of Consumer and Business Services or representative of the department shall order it to be vacated.

(4) If the structure, in whole or in part, is listed on or is eligible for listing on the National Register of Historic Places, established and maintained under the National Historic Preservation Act of 1966   1 (P.L. 89-665), or if the National Register of Historic Places ceases accepting nominations, is approved for listing on an Oregon register of historic places, or is a locally designated landmark protected by ordinance against demolition without due process, alternative compliance with the provisions of subsection (2)(a) and (c) of this section shall be allowed if the repaired or rehabilitated building is no more hazardous than it would be if repaired or rehabilitated in accordance with (2)(a) of this section.