Oregon Revised Statutes Occupations and Professions § 701.117

A contractor shall notify the Construction Contractors Board of any change of address while licensed and for one year following the date the contractor's license expires or otherwise becomes inactive. The contractor shall so notify the board within 10 days of the date upon which the change of address occurs. Initial notice of a contested case directed by the board to the last-known address of record shall be considered delivered when deposited in the United States mail and sent registered or certified or post office receipt secured. Any other communication directed by the board to the last-known address of record shall be considered delivered when deposited in the United States mail, regular mail.