The FAA will move forward with plans to establish six test sites for unmanned aerial systems, Administrator Michael Huerta said on Friday. "We expect to learn how unmanned aircraft systems operate in different environments and how they will impact air traffic operations," he said. "The test sites will also inform the agency as we develop standards for certifying unmanned aircraft and determine necessary air traffic requirements." The site selections are expected by the end of September. Last November, Huerta had delayed the test-site selection, citing privacy concerns.