The Airport Obstruction Chart (AOC) is a 1:12,000 scale graphic (1:18,000 scale graphic for Denver International DEN 9077) depicting Federal Aviation Regulations Part 77 surfaces, a representation of objects that penetrate these surfaces, runway, taxiway, and ramp areas, navigational aids, prominent airport buildings, plus a selection of roads and other planimetric detail in the airport vicinity. The following is a list of the digital CAD files that are now available for some Airports in Microstation's design file (DGN) format.
DisclaimerInquiries concerning the NGS Airport Obstruction Charts should be directed to:
Aeronautical Data Coordinator: uddf @ noaa.gov