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Government Accountability Office, Unmanned Aircraft Systems: Measuring Progress and Addressing Potential Privacy Concerns Would Facilitate Integration into the National Airspace System (GAO-12-981) (Sept. 14, 2012) (full-text).
Progress has been made, but additional work is needed to overcome many of the obstacles to the safe integration of unmanned aircraft systems (UAS) that the GAO identified in 2008. The GAO reported in 2008 that UAS could not meet the aviation safety requirements developed for manned aircraft and that this posed several obstacles to safe and routine operation in the national airspace system. These obstacles still exist and include the inability for UAS to sense and avoid other aircraft and airborne objects in a manner similar to manned aircraft; vulnerabilities in the command and control of UAS operations; the lack of technological and operational standards needed to guide safe and consistent performance of UAS; and final regulations to accelerate the safe integration of UAS into the national airspace system. The Joint Planning and Development Office of the FAA has provided UAS stakeholders with a framework to collaborate and coordinate their UAS integration efforts.
Congress set forth specific requirements and deadlines in the FAA Modernization and Reform Act of 2012 for the FAA to safely accelerate UAS integration. The FAA, in coordination with stakeholders, has begun making progress toward completing those requirements, but has missed one deadline and could miss others. Many of the requirements entail significant work, including completing planning efforts and issuing a final rule for small UAS. Most of the requirements are to be achieved by December 2015.
While the FAA has taken steps to meet them, it is uncertain when the national airspace system will be prepared to accommodate UAS given that these efforts are occurring simultaneously and without monitoring to assess the quality of progress over time toward the deadlines Congress established. Better monitoring can help the FAA understand what has been achieved and what remains to be done and can also help keep Congress informed about this significant change to the aviation landscape.
Concerns about national security, privacy, and the interference in Global Positioning System (GPS) signals have not been resolved and may influence acceptance of routine access for UAS in the national airspace system. The Department of Homeland Security's (DHS) Transportation Security Administration (TSA) has the authority to regulate security of all modes of transportation, including non-military UAS. Working with the FAA and other federal agencies, TSA implements security procedures, such as airspace restrictions like those limiting operations into and out of Ronald Reagan National Airport.
In 2008, the GAO recommended that TSA examine the security implications of non-military UAS. According to a TSA official, it recently reviewed its UAS related advisories and determined that they are still applicable. TSA has not provided information on its efforts to mitigate security implications of UAS, and the GAO believes TSA should act on this recommendation.
Stakeholder privacy concerns include the potential for increased amounts of government surveillance using technologies placed on UAS, the collection and use of such data, and potential violations of constitutional Fourth Amendment protections against unreasonable search and seizures. Currently, no federal agency has specific statutory responsibility to regulate privacy matters relating to UAS for the entire federal government. Some stakeholders have suggested that DHS or the Department of Justice (DOJ) might be better positioned to address privacy issues since they generally stem from the operational uses of UAS for governmental surveillance and law enforcement purposes. Working proactively to address security and privacy concerns could help prevent further delays in UAS integration. Finally, non-military UAS GPS signals are unencrypted, risking potential interruption of the command and control of UAS.
This report discusses (1) the status of obstacles identified in GAO's 2008 report to integrate UAS into the national airspace system, (2) FAA's progress in meeting its congressional requirements for UAS, and (3) emerging issues.