(a) Is not being used in conjunction with the activities customarily carried on in the management and operation of forestland held or used for the predominant purpose of growing and harvesting trees of a marketable species; or
(b)(A) Is not being used in conjunction with farm use; and
(B) Is used for a nonfarm purpose; however, vacancy does not constitute a change in use.
(2) If a homesite becomes disqualified from special assessment under the provisions of subsection (1) of this section, except for establishing a nonfarm dwelling pursuant to ORS 215.236, no additional tax shall be imposed following disqualification. The remaining qualifying portion of the parcel shall be valued as specially assessed.
(3) If the owner establishes a nonfarm dwelling in an exclusive farm use zone under ORS 215.236, additional taxes shall be imposed as provided in ORS 308A.700 to 308A.733. [Formerly 308.378]