Rocky Mountain Certificate Management Office (CMO)
26805 E. 68th Avenue #200
Denver, Colorado 80249-6361
Phone: (303) 342-1100
FAX: (303) 342-1176
Office Hours: 8:00am – 4:00pm, Mountain Time, Monday – Friday
Appointments are recommended for office visits.
Who We Are
- Service Area
The Rocky Mountain CMO oversees the 14 CFR Part 121 certificates for Frontier Airlines, Great Lakes Airlines and Lynx Airlines, including U. S. and international flight operations, aircraft maintenance, and aircrew training. - Directions to the Office
- Employee Directory (PDF)

