Phone Number
360-407-2700
Toll Free: 800-583-8271
Hours of Operation
Adjudicative Support Center: Monday – Friday 7:00 - 5:00 Pacific Standard Time
Business Hours: Monday - Friday 8:00 - 5:00 Pacific Standard Time
OAH is closed on holidays
Other Information
For information about offices including fax numbers, addresses, directions, and hours of operation, please click offices.
Please click office closures for office hours during during inclement weather.