Amazon has reached a step closer to launching its drone delivery service, as the Federal Aviation Administration has recently given the approval to the retail company to fly its unmanned aircraft on a trial basis.

According to Gigi Barnett, many other companies have now applied for a license to fly.

These are light, fast and sturdy enough for the inspection of bridges, monitoring of crops and assistance in rescue missions. Now, the list will also include Amazon's ambitious "Prime Air" drone service.

One of the company's vice presidents, in a written statement, said that the company is committed enough to realize its vision for Prime Air and is all set to deploy where they have the regulatory support they need.

For now, the online retailer has got a license on trial basis. Under FAA regulations commercial drones are allowed less than 55 pounds flown up to 100 miles per hour.

The regulations said that they can hit the skies in daylight hours only and that the operator need to be at least 17 years old with what the FAA is calling an "Unmanned Aircraft Operation Certificate".

UMD UAS test site director Matt Scassero said, "Like any new technology, the technology can also be misused so we just have to make sure that as we're enabling the technology to be used, such as unmanned aircraft systems, we're also looking at how they can be misused".

Along with the approval for Amazon's drone service, the FAA has also approved licenses for around 50 other purposes, including movie-making, inspections and aerial photography.

It was in 2013, when Amazon first ignited interest in its drone delivery service. Since then, the company has supported faster regulatory action in support of drones.