ORS § 323.120
In lieu of a bond or bonds a distributor, under such conditions as the Department of Revenue may prescribe, may deposit with the State Treasurer an amount of lawful money equivalent to the amount of the bond or bonds otherwise required, or the distributor may deposit an irrevocable letter of credit issued by an insured institution, as defined in ORS 706.008, or readily salable bonds or other obligations of the United States, the State of Oregon, or any county of this state of an actual market value of not less than the amount of the bond or bonds otherwise required by ORS 323.005 to 323.482. The State Treasurer shall immediately notify the department as to the time of receipt and the amount of money or value of the irrevocable letter of credit or of bonds received by the State Treasurer.
ORS 323.120