Former Amazon Chief Executive Jeff Bezos is set to fly to the edge of space on Blue Origin's maiden crewed voyage on July 20.

The Federal Aviation Administration (FAA) said on Monday it approved a Blue Origin license to carry humans on the New Shepard launch system into space.

Blue Origin is authorised to carry humans while its FAA license is valid through August and is approved to conduct these missions from its Launch Site One facility in Texas, the agency confirmed.

Blue Origin's flight will come a little over a week after space-tourism rival Virgin Galactic successfully sent a crew including its founder, British billionaire Richard Branson, to the edge of space.

Blue Origin was required to verify its launch vehicle's hardware and software worked safely during a test flight and the FAA confirmed it met regulatory requirements.

Proving rocket travel is safe for the public is key to developing what the Swiss-based investment bank UBS estimates will be a $3 billion annual space tourism market in a decade.

Virgin Galactic and Blue Origin, as well as the space firm founded by rival billionaire Elon Musk, are working to usher in a new era of routine commercial civilian space travel in what has been popularised as the "billionaire space race."