Oregon Revised Statutes Public Financial Administration § 294.028

When authorized by the governing body, any custodian of funds of any municipal or quasi-municipal corporation or civil subdivision of this state other than a school district may direct the depository of such funds to pay any warrant drawn upon such custodian upon presentment of such warrant to such depository, to the same extent and with the same effect as though such warrant were a check drawn upon such depository by such custodian. Such direction shall be in writing and shall identify by name and signature the warrant issuing officer or officers and such depository may rely upon such direction and identification in the payment of such warrants.