WASHINGTON (Bloomberg) - Don't hold your breath waiting for a drone to drop off that order from Amazon.com Inc. or that large pepperoni pie dinner from your favorite pizza joint.
The U.S. government's first attempt at widespread approval for the use of small unmanned aircraft could change how some everyday business activities get done, bridge inspections being one. It may produce at least $100 million in economic benefits, according to an analysis by President Barack Obama's administration.
What it won't allow are the kind of autonomous flights envisioned by companies including Amazon, Google and Alibaba. At least not yet. Even the initial uses are at least two years away.
"This is not the last word, by any means," Michael Huerta, chief of the U.S. Federal Aviation Administration, told reporters on a conference call on Sunday from Washington.
For the time being, the FAA has concluded that small drones for hire must be flown within sight of an operator and away from crowds for safety reasons.
Those restrictions will not only prevent Amazon's Prime Air from making deliveries by drone, they may limit other uses companies were awaiting, such as long-range pipeline inspections and news-media photography of public events, according to Patrick Egan, an editor at the informational website suasnews.com, who participated in the industry committee that advised the FAA on the rule proposal.
"It is pretty limiting, but we need to open the door somewhere," Egan said in an interview.
The FAA identified at least four areas where it said small unmanned aircraft can be beneficial: photography, agriculture, law enforcement and search and rescue, and inspecting structures such as bridges and telecommunications towers.
The Washington-based Small UAV Coalition, which represents Amazon and Google, said the proposal while welcome was too cautious on several fronts.
Allowing drones to fly longer distances using video and other sensors for guidance "is critical to unleashing the power of automation in this space," the group said in an e-mailed statement.
The FAA should also give drone operators more leeway to fly over people who aren't involved in the flight operation, it said.
The regulator, other government agencies and industry groups are studying new technology that may someday allow the Amazons of the world more freedom to fly, Huerta said.
Those technologies include how to install devices that will sense other drones or obstructions so unmanned craft can avoid collisions, he said.
The agency also has a process to grant waivers allowing broader uses if companies can show it is safe, he said.
"The FAA needs to begin and expeditiously complete the formal process to address the needs of our business, and ultimately our customers," Paul Misener, vice president of global public policy for Amazon, said in an e-mailed statement
"We are committed to realizing our vision for Prime Air and are prepared to deploy where we have the regulatory support we need."
Even companies willing to live by the restrictions won't be able to operate immediately. The FAA must review what probably will be an onslaught of public comments seeking changes to the proposal, a process that may take years. An FAA policy statement on hobby-drone flights last year drew more than 30,000 comments.
The regulations may not be completed until 2017 at the soonest, Gerald Dillingham, the Government Accountability Office's director of physical infrastructure issues, told Congress at a Dec. 10 hearing.
Congress mandated in 2012 that the FAA, which primarily regulates piloted airplanes, find a way to safely integrate unmanned aircraft in U.S. skies by Sept. 30, 2015, a deadline that the government had already said won't be met.
Helen Greiner, the CEO of CyPhy Works Inc., said it's still "a great day for drones." Her Massachusetts-based company develops unmanned aerial vehicles for use in the real estate, agricultural, security and energy industries.
Greiner said she was relieved that commercial drone operators won't have to obtain a traditional pilot's license. The FAA has proposed that operators must be at least 17 years old and pass a knowledge test.
"This provides a glimmer of hope for potential commercial operators" of drone technology, Charles Easterling, founder of Crescent Unmanned Systems LLC, said in a telephone interview. "There are a lot of startups out there that have been waiting for this and for potential users, it sets their minds at ease."