Yes!

Per ORS 475.309(9), if your application has not yet been approved, denied, or terminated, you may provide law enforcement with a copy of your written documentation as it was submitted to the department. You must also submit proof of the date of mailing (or other transmission) of the documentation. This documentation will have the same legal effect as a registry identification card, until such time as you receive your card or you have received notification that your application has been approved, denied, or terminated.