Oregon constitution
article X-a: catastrophic disasters
Section 3

(5) Notwithstanding section 1a, Article IX of this Constitution, the Legislative Assembly may declare an emergency in any bill regulating taxation or exemption, including but not limited to any bill that decreases or suspends taxes or postpones the due date of taxes, if the Legislative Assembly determines that the enactment of the bill is necessary to provide an adequate response to the catastrophic disaster.