Oregon Revised Statutes Elections § 250.043

(a) The signature sheets containing the original signatures were stolen or destroyed by fire, a natural disaster or other act of God; and

(b) The photographic copy of each original signature sheet contains the number of the original signature sheets prescribed by the Secretary of State under ORS 250.015.

(a) “Act of God” means an unanticipated grave natural disaster or other natural phenomenon of an exceptional, inevitable and irresistible character, the effects of which could not have been prevented or avoided by the exercise of due care or foresight.

(b) “Filing officer” means the Secretary of State in the case of an initiative or referendum petition relating to a state measure, the county clerk in the case of an initiative or referendum petition relating to a county measure, the city elections officer in the case of an initiative or referendum petition relating to a city measure and the elections officer as defined in ORS 255.005 in the case of an initiative or referendum petition relating to a district measure.