Oregon Revised Statutes Title 26A. Economic Development § 285C.210

(a) The number of employees of the firm within the enterprise zone is reduced by more than 85 percent from the highest number of employees of the firm within the enterprise zone;

(b) The number of employees of a firm within the enterprise zone has been reduced by more than 50 percent from the highest number of employees of the firm within the enterprise zone for a period of time that is equal to or more than nine months; or

(c) The annual average number of employees within the enterprise zone during the first assessment year for which the exemption under ORS 285C.175 is granted, or any subsequent year in which an exemption is claimed, is reduced below the greater of:

(a) The number of employees of a firm within the enterprise zone is the employment of the firm, as defined in ORS 285C.200, on the earlier of the date a claim for exemption is filed under ORS 285C.220 or April 1, of each assessment year for which an exemption under ORS 285C.175 is claimed, and for the year immediately following the last assessment year for which an exemption is claimed.

(b) Except as specified in subsection (1)(c) of this section, the annual average number of employees of the firm is the number of firm employees within the enterprise zone averaged over each assessment year in which an exemption under ORS 285C.175 is allowed, using employment figures for no fewer than four equivalent periods during the year.

(c) For the first assessment year for which an authorized business firm that qualifies under ORS 285C.200 (6) claims an exemption under ORS 285C.175, substantial curtailment under subsection (1)(a) or (c) of this section shall be determined by: