2007 ORS § 289.215¹
Validity of bonds not affected by other matters regarding facility

The validity of bonds issued under this chapter shall not be dependent on nor be affected by the validity or regularity of any proceeding relating to the acquisition, purchase, construction, reconstruction, installation, improvement, betterment or extension of the project for which the bonds are issued. The official action authorizing such bonds may provide that the bonds shall contain a recital that they are issued pursuant to this chapter and such recital shall be conclusive evidence of their validity and of the regularity of their issuance. [1989 c.820 §12]