SpaceX will now handle two rotations of astronauts from the International Space Station, NASA announced Friday.

The space agency said in a release that the Hawthorne, Calif.-based space company had landed its second rotation, matching Boeing.

The multiple carriers means “reliable access to the station on American spacecraft and rockets,” said Kathy Lueders, manager of NASA’s Commercial Crew program, in a release.

Lueders said SpaceX’s Crew Dragon and Boeing’s Crew Space Transportation-100 vehicles will remain at the station, serving as a “life boat” there for up to seven months.

NASA had previously awarded SpaceX an astronaut launch in its Commercial Crew Transportation Contract in November. Boeing, meanwhile, received its orders in May 2015 and in December.

"We’re making great progress with Crew Dragon, with qualification of our docking adapter and initial acceptance testing of the pressure vessel qualification unit completed" said Gwynne Shotwell, SpaceX president and chief operating officer, in the release. “We appreciate the trust NASA has placed in SpaceX with the order of another crew mission and look forward to flying astronauts from American soil next year."

NASA has yet to determine which provider, SpaceX or Boeing, will receive the first flight of astronauts into space from U.S. soil. However, each of the company’s contracts allow for up to six flights.

Billionaire entrepreneur Elon Musk’s SpaceX has been retooling one of the launch pads on Florida’s Space Coast with necessary hardware for crewed missions.