|Airports, total||Public use||Private use||Certificated, total||Civil||Military|
|Total||Runways (percent)||Total||Runways (percent)|
KEY: U = data are unavailable.
NOTES: Includes civil and joint-use civil-military airports, heliports, STOL (short takeoff and landing) ports, and seaplane bases in the United States and its territories. Publicly owned facilities are open for public use with no prior authorization or permission. Certificated airports serve any (1) scheduled and unscheduled passenger-carrying air carrier aircraft with more than 30 seats; and (2) scheduled passenger-carrying air carrier operations in aircraft with more than 9 seats but less than 31 seats.
SOURCE: U.S. Department of Transportation, Federal Aviation Administration, Administrator's Fact Book (Annual Issues), available at http://www.faa.gov/ as of April 2010 as reported in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, table 1-3, available at http://www.bts.gov/publications/national_transportation_statistics/ as of August 2010.