(2) So long as the deposit remains unencumbered the depositor is entitled to collect the interest upon such securities.

(3) The department shall hold the securities or letter of credit upon such terms as the department shall designate and approve pursuant to the provisions of this chapter, and shall deliver such securities or letter of credit to the State Treasurer, who shall receive and hold them subject to the lawful orders of the department. The State Treasurer and the surety or letter of credit issuer of the treasurer shall be liable upon the official bond or letter of credit for their safekeeping. The depositors shall reimburse the State Treasurer for any expenses incurred by the treasurer in the mailing, insuring, shipping or delivering of any such securities or letter of credit, or of the interest coupons attached thereto as they mature.

(4) Such substituted security or letter of credit shall be subject to the liabilities imposed by the terms of the policy of insurance or surety bond or letter of credit then currently used by the department.

(5) If the securities or letter of credit provided for in this section are furnished in lieu of an insurance policy or bond, they shall not be subject to withdrawal or assignment by the holder of the certificate or permit, either voluntarily or by operation of law, until the expiration of one year after the holder of the certificate or permit, in connection with which they are furnished has:

(a) Substituted therefor a policy of insurance as provided in ORS 825.160 and 825.162;

(b) The certificate or permit canceled; or

(c) Surrendered such certificate or permit to the department for cancellation and has ceased operation thereunder.

(6) If any such securities become impaired in value, the department shall require additional protection by insurance, bond, letter of credit or substitute security to the extent that the value of the securities may have become impaired. [Formerly 767.210; 1997 c.631 §559; 2011 c.73 §3]