NASA said today that SpaceX has passed "an important design review" on the crewed version of its Dragon spacecraft. The "concept baseline review" took place June 14 at the company's headquarters in Hawthorne, Calif.

In the review, SpaceX presented a NASA plane with the primary and secondary design elements of the Dragon capsule it plans to use to ferry astronauts to and from low Earth orbit, including to the International Space Station. The review included details about each phase of a potential crewed mission, including "how the company plans to modify its launch pads to support such missions, Dragon's docking capabilities, the weight and power requirements for the spacecraft, and prospective ground landing sites and techniques. The company also outlined crew living arrangements, such as environmental control and life support equipment, displays and controls," NASA said.

SpaceX is one of several companies developing crew-carrying capabilities under Commercial Crew Development Round 2 (CCDev2) agreements with NASA's Commercial Crew Program (CCP). NASA said Thursday that all of the companies are meeting their established milestones.

"SpaceX has made significant progress on its crew transportation capabilities," NASA CCP Manager Ed Mango said. "We commend the SpaceX team on its diligence in meeting its CCDev2 goals to mature the company's technology as this nation continues to build a real capability for America's commercial spaceflight needs."

"The successful conclusion of the concept baseline review places SpaceX exactly where we want to be -- ready to move on to the next phase and on target to fly people into space aboard Dragon by the middle of the decade," said SpaceX CEO and Chief Designer Elon Musk.