FAR 101 Resources
Key MSL - Feet above Mean Sea Level AGL - Feet above Ground Level NM - Nautical Miles
Filing a Request for an FAA Waiver (COA)
Part 101 Applications for an FAA Certificate of Authorization (COA) are handled by the three FAA Service Centers responsible for airspace of ARTCCsAir Route Traffic Control Centers, and the TRACONsTerminal Radar Approach Control Facilities and Towers specified below. Applications for a waiver are signed, scanned, and emailed to the Service Center assigned to your area.
- In the Western Service Center (WSC/OSGOperations Service Group)
- ZLA/Los Angeles, ZOA/Oakland, ZSE/Seattle, ZLC/Salt Lake, ZDV/Denver, and ZAN/Anchorage.
- email - 9-ato-wsa-osg-part101@faa.gov
- In the Central Service Center (CSC/OSG)
- ZAB/Albuquerque, ZHU/Houston, ZFW/Ft. Worth, ZKC/Kansas City, ZMP/Minneapolis, ZAU/Chicago, ZOB/Cleveland, and ZID/Indianapolis.
- email - 9-AJO-CSA-Part101@faa.gov
- In the Eastern Service Center (ESC/OSG)
- ZMA/Miami, ZJX/Jacksonville, ZTL/Atlanta, ZME/Memphis, ZDC/Washington D.C., ZNY/New York, and ZBW/Boston.
- email - 9-ATO-ESA-OSG-AirspaceWaiver@faa.gov
AHA!
The FAA Office of Commercial Space (AST) get involved to write-up an aircraft hazard area (AHA) when:
- ANY Class (I, II, or III), amateur rocket requests to go to 18,000 feet MSL or higher…..and/or……
- the request is for Class III amateur rockets, regardless of altitude.
That is why you see a few of our COAs approved for a maximum altitude of 17,999 feet MSL (that keeps them BELOW the threshold that necessitates the AST Office getting involved). When the AST Office gets involved, they generally need from 6 to 10 weeks to produce their “AHA”.
So, in summary, the FAA AST Office needs to write an “AHA” if Class III amateur rockets are used at ANY altitude…..and/or…..the maximum requested altitude is 18,000 feet MSL or higher, REGARDLESS of Class of amateur rocket. Add an extra 6 to 10 weeks for a request, if the AST needs to get involved.
Also, a rule of thumb: the further West, and more deserted the airspace, INCREASES the chance of being approved for high altitude requests (18,000 feet or higher). Very few requests in the Eastern Service Center area of responsibility (AOR), are approved for altitudes of 18,000 feet or higher, because of the complexity and congestion of their airspace. A few might be approved, but not many. It is quite different to request a COA for the middle of the 4 corners area where NM, CO, UT, and AZ meet vs. a request in the suburbs of DFW or ORD!
References
FAAFederal Aviation Administration
- Domestic Air Route Traffic Control Centers (ARTCC)
- Terminal Radar Approach Control Facilities (TRACON)
- Instructions for the Certificate of Waiver or Authorization (COA)
- Certificate of Waiver or Authorization (Form FAA 7711-2)
- Notice to Air Missions (NOTAMs)
- Amateur Rocket and Commercial Space Operations / Amateur Rockets

