Unmanned Aerial Systems: Status of Test Sites and International Developments
Released: 2015-03-24T00:00:00

Letter

Background

FAA has authority to authorize all UAS operations in the national airspace—military; public (academic institutions and federal, state, and local governments including law enforcement organizations); and civil (non-government including commercial). Currently, since a final rulemaking is not completed, FAA only allows UAS access to the national airspace on a case-by-case basis. FAA provides access to the airspace through three different means:

Certificates of Waiver or Authorization (COA): Public entities including FAA-designated test sites may apply for COA. A COA is an authorization, generally for up to 2 years, issued by the FAA to a public operator for a specific UAS activity. Between January 1, 2014 and March 19, 2015 FAA had approved 674 public COAs.

Special Airworthiness Certificates in the Experimental Category (Experimental Certificate): Civil entities, including commercial interests, may apply for experimental certificates, which may be used for research and development, training, or demonstrations by manufactures.

Section 333 exemptions: Since September 2014, commercial entities may apply to FAA for issued exemptions under section 333 of the 2012 Act, Special Rules for Certain Unmanned Aircraft Systems. This exemption requires the Secretary of Transportation to determine if certain UASs may operate safely in the national airspace system prior to the completion of UAS rulemakings. FAA has granted such exemptions to 48 of 684 total applications (7 percent) from companies or other entities applying under section 333. These companies may apply to fly at their own designated sites or the test sites.

While limited operations continue through these means of FAA approval, FAA has been planning for further integration.

In response to requirements of the 2012 Act, FAA issued the UAS Comprehensive Plan and the UAS Integration Roadmap, which broadly map the responsibilities and plans for the introduction of UAS into the national airspace system. These plans provide a broad framework to guide UAS integration efforts. The UAS Comprehensive Plan described the overarching, interagency goals, and approach and identified six high- level strategic goals for integrating UAS into the national airspace. The FAA Roadmap identified a broad three-phase approach to FAA’s UAS integration plans—Accommodation, Integration, and Evolution—with associated priorities for each phase that provide additional insight into how FAA plans to integrate UAS into the national airspace system. This phased approach has been supported by both academics and industry. FAA plans to use this approach to facilitate further incremental steps toward its goal of seamlessly integrating UAS flight into the national airspace.

Accommodation phase: According to the Roadmap, in the accommodation phase, FAA will apply special mitigations and procedures to safely facilitate limited UAS access to the national airspace system in the near-term. Accommodation is to predominate in the near-term with appropriate restrictions and constraints to mitigate any performance shortfalls. UAS operations in the national airspace system are considered on a case-by-case basis. During the near-term, R&D is to continue to identify challenges, validate advanced mitigation strategies, and explore opportunities to progress UAS integration into the national airspace system.

Integration phase: The primary objective of the integration phase is establishing performance requirements for UAS that would increase access to the NAS. During the mid- to far-term, FAA is to establish new or revised regulations, policies, procedures, guidance material, training, and understanding of systems and operations to support routine NAS operations. FAA plans for the integration phase to begin in the near- to mid-term with the implementation of the small UAS rule and is to expand the phase further over time (mid- and far-term) to consider wider integration of a broader field of UASs.

Evolution phase: In the evolution phase, FAA is to work to routinely update all required policy, regulations, procedures, guidance material, technologies, and training to support UAS operations in the NAS operational environment as it evolves over time. According to the Roadmap, it is important that the UAS community maintains the understanding that the NAS environment is not static and that many improvements are planned for the NAS over the next 13—15 years. To avoid obsolescence, UAS developers are to maintain a dual focus: integration into today’s NAS while maintaining cognizance of how the NAS is evolving.

In February 2015, FAA issued a Notice for Proposed Rulemaking for the operations of small UASs—those weighing less than 55 pounds—that could, once finalized, allow greater access to the national airspace. To mitigate risk, the proposed rule would limit small UASs to daylight-only operations, confined areas of operation, and visual-line-of-sight operations. FAAs release of this proposed rule for small UAS operations started the process of addressing additional requirements of the 2012 Act. See table 1 for a summary of the rule’s major provisions.

FAA has also met additional requirements outlined in the 2012 Act pertaining to the creation of UAS test sites. In December 2013, FAA selected six UAS test ranges. According to FAA, these sites were chosen based on a number of factors including geography, climate, airspace use, and a proposed research portfolio that was part of the application. All UAS operations at a test site must be authorized by FAA through either the use of a COA or an experimental certificate. In addition, there is no funding from FAA to support the test sites. Thus, these sites rely upon revenue generated from entities, such as those in the UAS industry, using the sites for UAS flights.

Foreign countries are also experiencing an increase in UAS use, and some have begun to allow commercial entities to fly UASs under limited circumstances. According to industry stakeholders, easier access to testing in these countries’ airspace has drawn the attention of some U.S. companies that wish to test their UASs without needing to adhere to FAA’s administrative requirements for flying UASs at one of the domestically located test sites, or obtaining an FAA COA. It has also led at least one test site to partner with a foreign country where, according to the test site operator, UAS test flights can be approved in 10 days.

FAA’s Six Test Sites Are Operational and Beginning to Conduct UAS Flights

Since being named in December 2013, the six designated test sites have become operational, applying for and receiving authorization from FAA to conduct test flights. From April 2014 through August 2014, as we were conducting our ongoing work, each of the six test sites became operational and signed an Other Transaction Agreement with FAA. All flights at a test site must be authorized under the authority of a COA or under the authority of an experimental certificate approved by FAA. Since becoming operational in 2014 until March 2015, five of the six test sites received 48 COAs and one experimental certificate in support of UAS operations resulting in over 195 UAS flights across the five test sites. These flights provide operations and safety data to FAA in support of UAS integration. While there are only a few contracts with industry thus far, according to test site operators these are important if the test sites are to remain operational. Table 2 provides an overview of test-site activity since the sites became operational.

FAA officials and some test sites told us that progress has been made in part because of FAA’s and sites’ efforts to work together. Test site officials meet every two weeks with FAA officials to discuss current issues, challenges, and progress. According to meeting minutes, these meetings have been used to discuss many issues from training for designated airworthiness representatives to processing of COAs. In addition, test sites have developed operational and safety processes that have been reviewed by FAA. Thus, while FAA has no funding directed to the test sites to specifically support research and development activities, FAA dedicates time and resources to supporting the test sites, and FAA staff we spoke to believe test sites are a benefit to the integration process and worth this investment.

According to FAA, its role is to ensure each test site sets up a safe-testing environment and to provide oversight that guarantees each test site operates under strict safety standards. FAA views the test sites as a location for industry to safely access the airspace. FAA told us it expects to collect data obtained from the users of the test ranges that will contribute to the continued development of standards for the safe and routine integration of UASs. The Other Transaction Agreement between FAA and the test sites defines the purpose of the test sites as research and testing in support of safe UAS integration into the national airspace. FAA and the test sites have worked together to define the role of the test sites and see that both the FAA and the test sites are effectively supporting each other and the goal of the test sites, we will continue to examine this progress and will report our final results late this year.

Other Countries Have Progressed with UAS Integration to Allow some Level of Commercial UAS Use

As part of our ongoing work, we identified a number of countries that allow commercial UAS operations and have done so for years. In Canada and Australia, regulations pertaining to UAS have been in place since 1996 and 2002, respectively. According to a MITRE study, the types of commercial operations allowed vary by country. For example, as of December 2014, Australia had issued over 180 UAS operating certificates to businesses engaged in aerial surveying, photography, and other lines of business. In Japan, the agriculture industry has used UASs to apply fertilizer and pesticide for over 10 years. Furthermore, several European countries have granted operating licenses to more than 1,000 operators to use UASs for safety inspections of infrastructure, such as rail tracks, or to support the agriculture industry. The MITRE study reported that the speed of change can vary based on a number of factors, including the complexity and size of the airspace and the supporting infrastructure. In addition, according to FAA, the legal and regulatory structures are different and may allow easier access to the airspace in other countries for UAS operations. While UAS commercial operations can occur in some countries, there are restrictions controlling their use.

We studied the UAS regulations of Australia, Canada, France, and the United Kingdom and found these countries impose similar types of requirements and restrictions on commercial UAS operations. For example, all these countries except Canada require government-issued certification documents before UASs can operate commercially. In November 2014, Canada issued new rules creating exemptions for commercial use of small UASs weighing 4.4 pounds or less and from 4.4 pounds to 55 pounds. UASs in these categories can commercially operate without a government-issued certification but must still follow operational restrictions, such as a height restriction and a requirement to operate within line of sight. Transport Canada officials told us this arrangement allows them to use scarce resources to regulate situations of relatively high risk. In addition, each country requires that UAS operators document how they ensure safety during flights and that their UAS regulations go into significant detail on subjects such as remote pilot training and licensing requirements. For example, the United Kingdom has established “national qualified entities” that conduct assessments of operators and make recommendations to the Civil Aviation Authority as to whether to approve that operator.

If UASs were to begin flying today in the national airspace system under the provisions of FAA’s proposed rules, their operating restrictions would be similar to regulations in these other four countries. However, there would be some differences in the details. For example, FAA proposes altitude restrictions of below 500 feet, while Australia, Canada, and the United Kingdom restrict operations to similar altitudes. Other proposed regulations require that FAA certify UAS pilots prior to commencing operations, while Canada and France do not require pilot certification. Table 3 shows how FAA’s proposed rules compare with the regulations of Australia, Canada, France, and the United Kingdom.

While regulations in these countries require UAS operations remain within the pilot’s visual line of sight, some countries are moving toward allowing limited operations beyond the pilot’s visual line of sight. For example, according to Australian civil aviation officials, they are developing a new UAS regulation that would allow operators to request a certificate allowing beyond line-of-sight operations. However, use would be very limited and allowed only on a case-by-case basis. Similarly, according to a French civil aviation official, France approves on a case-by-case basis, very limited beyond line-of-sight operations. Finally, in the United States, there have been beyond line-of-sight operations in the Arctic, and, NASA, FAA and the industry have successfully demonstrated detect-and-avoid technology, which is necessary for beyond line-of-sight operations.

In March 2015, the European Aviation Safety Agency (EASA) issued a proposal for UAS regulations that creates three categories of UAS operations—open, specific, and certified. Generally, the open category would not require authorization from an aviation authority but would have basic restrictions including altitude and distance from people. The specific category would require a risk assessment of the proposed operation and an approval to operate under restrictions specific to the operation. The final proposed category, certified operations, would be required for those higher-risk operations, specifically when the risk rises to a level comparable to manned operations. This category goes beyond FAA’s proposed rules by proposing regulations for large UAS operations and operations beyond the pilot’s visual line-of-sight. As other countries work toward integration standards organizations from Europe and the United States are coordinating to try and ensure harmonized standards. Specifically, RTCA and the European Organization for Civil Aviation Equipment (EUROCAE) have joint committees focused on harmonization of UAS standards.

Key Critical Steps Remain for UAS Integration

We found during our ongoing work that FAA faces some critical steps to keeping the UAS integration process moving forward, as described below: Issue final rule for small UASs: As we previously discussed, the NPRM for small UAS was issued in February 2015. However, FAA plans to process comments it receives on the NPRM and then issue a final rule for small UAS operations. FAA told us that it is expecting to receive tens of thousands of comments on the NPRM. Responding to these comments could extend the time to issue a final rule. According to FAA, its goal is to issue the final rule 16 months after the NPRM, but it may take longer. If this goal is met, the final rule would be issued in late 2016 or early 2017, about 2 years after the 2012 Act required. FAA officials told us that it has taken a number of steps to develop a framework to efficiently process the comments it expects to receive. Specifically, the officials said that FAA has a team of employees assigned to lead the effort with contractor support to track and categorize the comments as soon as they are received. According to FAA officials, the challenge of addressing comments could be somewhat mitigated if industry groups consolidated comments, thus reducing the total number of comments that FAA must address.

Implementation plan: The Comprehensive Plan and Roadmap provide broad plans for integration, but some have pointed out that FAA needs a detailed implementation plan to predict with any certainty when full integration will occur and what resources will be needed. The UAS Aviation Rulemaking Committee developed a detailed implementation plan to help FAA and others focus on the tasks needed to integrate UAS into the national airspace.need for an implementation plan that would identify the means, necessary resources, and schedule to safely and expeditiously integrate civil UASs into the national airspace. The proposed implementation plan contains several hundred tasks and other activities needed to complete the UAS integration process. FAA stated it used this proposed plan and the associated tasks and activities when developing its Roadmap. However, unlike the Roadmap, an implementation plan would include specific resources and time frames to meet the near-term goals that FAA has outlined in its Roadmap. An internal FAA report from August 2014 discussed the importance for incremental expansion of UAS operations. While this report did not specifically propose an implementation plan, it suggested that for each incremental expansion of operations, FAA identify the tasks necessary, responsibilities, resources, and expected time frames. Thus, the internal report suggested FAA develop plans to account for all the key components of an implementation plan. The Department of Transportation’s – Inspector General issued a report in June 2014 that contained a recommendation that FAA develop such a plan.

The FAA mentioned concerns regarding the augmentation of appropriations and limitations on accepting voluntary services. As a general proposition, an agency may not augment its appropriations from outside sources without specific statutory authority. The Antideficiency Act prohibits federal officers and employees from, among other things, accepting voluntary services except for emergencies involving the safety of human life or the protection of property. 31 U.S.C. § 1342. operations conducted by the test sites must have a COA.requires the test sites to provide safety and operations data collected for each flight.

Test site operators have told us incentives are needed to encourage greater UAS operations at the test sites. The operators explained that industry has been reluctant to operate at the test sites because under the current COA process, a UAS operator has to lease its UAS to the test site, thus potentially exposing proprietary technology. With a special airworthiness certificate in the experimental category, the UAS operator would not have to lease its UAS to the test site, therefore protecting any proprietary technology. FAA is, however, working on providing additional flexibility to the test sites to encourage greater use by industry. Specifically, FAA is willing to train designated airworthiness representatives for each test site. These individuals could then approve UASs for a special airworthiness certificate in the experimental category for operation at a test site. As previously indicated, three test sites had designated airworthiness representatives aligned with the test site, but only one experimental certificate had been approved. More broadly, we were told that FAA could do more to make the test sites accessible. According to FAA and some test site operators, FAA is working on creating a broad area COA that would allow easier access to the test site’s airspace for research and development. Such a COA would allow the test sites to conduct the airworthiness certification, typically performed by FAA, and then allow access to the test site’s airspace. As previously stated, one test site received 4 broad area COAs that were aircraft specific. Officials from test sites we spoke with during our ongoing work were seeking broad area COAs that were aircraft “agnostic”—meaning any aircraft could operate under the authority of that COA. According to FAA officials, in an effort to make test sites more accessible, they are working to expand the number of test ranges associated with the test sites, but not increasing the number of test sites. Currently, test sites have ranges in 14 states.

Public education program: UAS industry stakeholders and FAA have begun an educational campaign that provides prospective users with information and guidance on flying safely and responsibly. The public education campaign on allowed and safe UAS operations in the national airspace may ease public concerns about privacy and support a safer national airspace in the future. UASs’ operating without FAA approval or model aircraft operating outside of the safety code established by the Academy of Model Aeronautics potentially presents a danger to others operating in the national airspace. To address these safety issues, FAA has teamed up with industry to increase public awareness and inform those wishing to operate UAS how to do so safely. For example, three UAS industry stakeholders and FAA teamed up to launch an informational website for UAS operators. UASs are increasingly available online and on store shelves. Prospective operators—from consumers to businesses—want to fly and fly safely, but many do not realize that, just because you can easily acquire a UAS, that does not mean you can fly it anywhere, or for any purpose. “Know Before You Fly” is an educational campaign that provides prospective users with information and guidance on flying safely and responsibly (see table 4).

UAS and air traffic management: As FAA and others continue to address the challenges to UAS integration they are confronted with accounting for expected changes to the operations of the national airspace system as a FAA part of the Next Generation Air Transportation System (NextGen)has stated that the safe integration of UAS into the national airspace will be facilitated by new technologies being deployed. However, according to one stakeholder, UASs present a number of challenges that the existing national airspace is not set up to accommodate. For example, unlike manned aircraft, UASs that currently operate under COAs do not typically follow a civil aircraft flight plan where an aircraft takes off, flies to a destination, and then lands. Such flights require special accommodation by air-traffic controllers. Additionally, the air-traffic-control system uses navigational waypoints for manned aircraft, while UASs use Global Positioning System coordinates. Finally, if a UAS loses contact with its ground-control station, the air traffic controller might not know what the UAS will do to recover and how that may affect other aircraft in the vicinity. NextGen technologies, according to FAA, are continually being developed, tested, and deployed at the FAA Technical Center, and the FAA officials are working closely with MITRE to leverage all available technology for UAS integration.

Chairman Ayotte, Ranking Member Cantwell, and Members of the Subcommittee, this completes my prepared statement. I would be pleased to respond to any questions that you may have at this time.

Appendix I: GAO Contact and Staff Acknowledgments

GAO Contact

For further information on this testimony, please contact Gerald L. Dillingham, Ph.D., at (202)512-2834 or dillinghamg@gao.gov. In addition, contact points for our Offices of Congressional Relations and Public Affairs may be found on the last page of this statement.

Staff Acknowledgments

Individuals making key contributions to this testimony include Brandon Haller, Assistant Director; Daniel Hoy; Eric Hudson; Bonnie Pignatiello Leer; and Amy Rosewarne.

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