Oregon Revised Statutes Oregon Vehicle Code § 823.073

No common carrier shall abandon any of its agencies, or withdraw the agent therefrom, without the prior written authority of the Department of Transportation. If the primary business of the agent or agency is not that of a common carrier, the loss of the use of such agent or agency without the fault of the carrier shall not be considered a violation of this section, provided that the carrier shall give to the department notice of such loss immediately upon being informed thereof and secure another agent or agency within a reasonable period of time.