Or. Rev. Stat. § 279C.525
(1) Solicitation documents for a public improvement contract shall make specific reference to federal, state and local agencies that have enacted ordinances, rules or regulations dealing with the prevention of environmental pollution and the preservation of natural resources that affect the performance of the contract. If the successful bidder awarded the project is delayed or must undertake additional work by reason of existing ordinances, rules or regulations of agencies not cited in the public improvement contract or due to the enactment of new or the amendment of existing statutes, ordinances, rules or regulations relating to the prevention of environmental pollution and the preservation of natural resources occurring after the submission of the successful bid, the contracting agency may:
(6) Within a reasonable period of time following delivery of an estimate under subsection (5) of this section, the contracting agency may:
(7)
(8) Notwithstanding subsections (1) to (7) of this section, a contracting agency:
[2003 c.794 §142]