Or. Rev. Stat. § 285C.120
(1) If the population density of a county increases to more than 100 persons per square mile, so that the county is no longer a sparsely populated county, any existing rural enterprise zone located wholly or partly within that county shall continue to exist with that zone boundary until terminated. A boundary change under ORS 285C.115 that is subsequent to the date on which the county ceases to be a sparsely populated county may not add an area to the zone that:
(2) In designating or changing the boundary of a rural enterprise zone under ORS 285C.065, 285C.115 or 285C.250 in a sparsely populated county, a zone sponsor may seek a waiver of the distance limitations under ORS 285C.090 (4) by providing the necessary documentation under ORS 285C.074 or 285C.117. The Director of the Oregon Business Development Department shall grant the waiver if the director determines that:
[Formerly 285B.683; 2005 c.94 §7; 2015 c.648 §19]