Oregon Revised Statutes Trade Regulations and Practices § 646A.320

(1) If a supplier requires a retailer to improve the safety of farm implements or machinery, the supplier shall reimburse the retailer for the costs of parts, labor and transportation that the retailer incurred to make the improvement.

(2) If a supplier requires a retailer to improve farm implements or machinery for reasons other than safety, the supplier shall reimburse the retailer for the costs of parts and labor that the retailer incurred to make the improvement.

(3) For labor to improve farm implements or machinery, a supplier may not pay a retailer an hourly rate that is less than rate that the retailer charges for like services.

(4) For parts to improve farm implements or machinery, a supplier may not pay a retailer less than the amount that the retailer paid for the parts plus a reasonable allowance for the shipping and handling of the parts.