The Boeing Company has announced completion of the Phase Two Spacecraft Safety Review of its Crew Space Transportation (CST)-100 spacecraft and the Critical Design Review of its integrated systems, meeting all of the company's progress goals needed for advancement, as it hopes to supply the nation's next taxi to space.

The CST-100 is being developed as part of the National Aeronautics and Space Administration's Commercial Crew Program, which intends to have a crew transportation system available for low-Earth orbit destinations such as the International Space Station ready by 2017.

Featuring a weld-less structure, the CST-100 and its competing shuttle crafts will be designed to accommodate up to seven crew members or a combination of crew and cargo.

The Boeing craft would also have wireless internet and Boeing LED "Sky Lighting" technology, according to a company news release.

The Phase Two Spacecraft Safety Review included an overall hazard analysis of the spacecraft, which identified life-threatening situations and ensured the current design mitigates any safety risks.

The reviews were Boeing's final two milestones in the current phase of its partnership with NASA.

Completed in July, the CDR milestone marks a significant step in reaching the ultimate design that will be used for the spacecraft, launch vehicle and related systems. Propulsion, software, avionics, landing, power and docking systems were among 44 individual CDRs conducted as part of the broader review.

"The challenge of a CDR is to ensure all the pieces and sub-systems are working together," John Mulholland, Boeing Commercial Crew program manager, said in the release. "Integration of these systems is key. Now we look forward to bringing the CST-100 to life."

Aside from Boeing, Blue Origin, Sierra Nevada Corporation and Space Exploration Technologies Corp., or, SpaceX, are hoping to get the final nod from NASA to develop a new generation of safe, reliable, and cost-effective means of crew space transportation.