The 50 Best Places to Visit in Oregon

oregon 9W-9 (Substitute) REQUEST FOR TAXPAYER IDENTIFICATION AND CERTIFICATION ... WHY YOU RECEIVED THIS FORM: A State of Oregon agency has established an account forLast updated on December 26th, 2025. Oregon is the 27 th most populous and the 9 th most extensive of the 50 states of the United States. It lies in the Pacific Northwest region on