Rural areas to be mapped; building permit issuance for exempt dwellings limited. (1) A county exempting owner-built dwellings and outbuildings in rural areas from the structural code under ORS 455.330 shall designate those rural areas upon publicly available maps of readable scale showing individual property lines

(2) A county ordinance under ORS 455.330 shall provide that no person shall receive a building permit in that county for an exempt owner-built dwelling and outbuildings more than once every five years. [Formerly 456.935]