Portland Certificate Management Office (CMO)

3180 NW 229th Avenue
Hillsboro, Oregon 97124
Phone: (503) 615-3200 or (800) 847-3806
Fax: (503) 615-3300
Office Hours: 7:30 a.m. to 4:00 p.m., Pacific Time, Monday - Friday
Appointments are recommended for office visits.

Who We Are

• Service Area
  The Portland CMO oversees the 14 CFR Part 121 certificates for Horizon Air and Evergreen International Airlines, including U. S. and international flight operations, aircraft maintenance, and aircrew training.
• Directions to the Office
• Employee Directory (PDF)